# what are the differences btw ideal and non ideal solns?

IDEAL SOLUTION: An ideal solution may be defined as the solution which obeys Raoult’s law over the entire range of concentration and temperature and during the formation of which no change in enthalpy and no change in volume takes place. The conditions for an ideal solution are:

1. ΔVmixing = 0
2. ΔHmixing = 0
3. A—A interaction = A—B interaction = B—B interaction.

NON-IDEAL SOLUTION: A solution which does not obey raoult's law is called non ideal solution.

1. ΔVmixing 0
2. ΔHmixing 0
3. A—A interaction A—B interaction B—B interaction.

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 Ideal Solution Non-Ideal Solutions Solutions which obey Raoult’s law over the entire range of concentrations are called ideal solution. Solutions which do not obey Raoult’s law over the entire range of concentration The graph for the ideal solution can be shown as: The graph for the non - ideal solution can be shown as: • 5

 Ideal solutions Non-ideal solutions Positive deviation from Raoult’s law Negative deviation from Raoult’s law 1.Obey Raoult’s law at every range of concentration.   2.?Hmix = 0; neither is evolved nor absorbed during dissolution.   3.?Vmix = 0; total volume of solution is equal to sum of volumes of the components.   4.P = pA + pB = pA0XA + pB0XB   i.e., pA =     5.A—A, A—B, B—B interactions should be same, i.e., ‘A’ and ‘B’ are identical in shape, size and character.       6. Escaping tendency of ‘A’ and ‘B’ should be same in pure liquids and in the solution.   Examples: dilute solutions; benzene + toluence: n-hexane + n-heptane; chlorobenzene + bromobenzene; n-butyl chloride + n-butyl bromide. 1.Do not obey Raoult’s law.     2.?Hmix>0. Endothermic dissolution; heat is absorbed.   3.?Vmix > 0. Volume is increased after dissolution.   4.pA > pA0XA; pB > pB0XB ∴ pA + pB > pA0XA + pB0XB   5.A—B attractive force should be weaker than A—A and B—B attractive forces. ‘A’ and ‘B’ have different shape, size and character.       6. ‘A’ and B’ escape easily showing higher vapour pressure than the expected value.     Examples: acetone + ethanol acetone + CS2; water + methanol; water + ethanol; CCl4 + toluene; CCl4 + CHCl3; acetone + benzene; CCl4 + CH3OH; Cyclohexane + ethanol 1.Do not obey Raoult’s law.     2.?Hmix<0. Exothermic dissolution; heat is evolved.   3.?Vmix <0. Volume is decreased during dissolution.     4.pA < pA0XA; pB < pB0XB ∴ pA + pB < pA0XA + pB0XB     5. A—B attractive force should be greater than A—A and B—B attractive forces. ‘A’ and ‘B’ have different shape, size and character.   6. Escaping tendency of both components ‘A’ and ‘B’ is lowered showing lower vapour pressure than expected ideally.   Examples: acetone + aniline; acetone + chloroform; CH3OH + CH3COOH; H2O + HNO3; Choloroform + diethyl ether, water + HCl; acetic acid + pyridine; chloroform + benzene.

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Comparison Between Ideal and Non-ideal Solutions

 Ideal solutions Non-ideal solutions Positive deviation from Raoult’s law Negative deviation from Raoult’s law 1.Obey Raoult’s law at every range of concentration.   2.?Hmix = 0; neither is evolved nor absorbed during dissolution.   3.?Vmix = 0; total volume of solution is equal to sum of volumes of the components.   4.P = pA + pB = pA0XA + pB0XB   i.e., pA =     5.A—A, A—B, B—B interactions should be same, i.e., ‘A’ and ‘B’ are identical in shape, size and character.       6. Escaping tendency of ‘A’ and ‘B’ should be same in pure liquids and in the solution.   Examples: dilute solutions; benzene + toluence: n-hexane + n-heptane; chlorobenzene + bromobenzene; n-butyl chloride + n-butyl bromide. 1.Do not obey Raoult’s law.     2.?Hmix>0. Endothermic dissolution; heat is absorbed.   3.?Vmix > 0. Volume is increased after dissolution.   4.pA > pA0XA; pB > pB0XB ∴ pA + pB > pA0XA + pB0XB   5.A—B attractive force should be weaker than A—A and B—B attractive forces. ‘A’ and ‘B’ have different shape, size and character.       6. ‘A’ and B’ escape easily showing higher vapour pressure than the expected value.     Examples: acetone + ethanol acetone + CS2; water + methanol; water + ethanol; CCl4 + toluene; CCl4 + CHCl3; acetone + benzene; CCl4 + CH3OH; Cyclohexane + ethanol 1.Do not obey Raoult’s law.     2.?Hmix<0. Exothermic dissolution; heat is evolved.   3.?Vmix <0. Volume is decreased during dissolution.     4.pA < pA0XA; pB < pB0XB ∴ pA + pB < pA0XA + pB0XB     5. A—B attractive force should be greater than A—A and B—B attractive forces. ‘A’ and ‘B’ have different shape, size and character.   6. Escaping tendency of both components ‘A’ and ‘B’ is lowered showing lower vapour pressure than expected ideally.   Examples: acetone + aniline; acetone + chloroform; CH3OH + CH3COOH; H2O + HNO3; Choloroform + diethyl ether, water + HCl; acetic acid + pyridine; chloroform + benzene. • 12

#### Ideal and non-ideal solutions

 Ideal solutions Non-ideal solutions Positive deviation from Raoult's law Negative deviation from Raoult's law 1.  Obey Raoult's law at every range of concentration. 1.  Do not obey Raoult's law. 1.   Do not obey Raoult's law. 2. neither heat is evolved nor   absorbed during dissolution. 2. Endothermic dissolution; heat is absorbed. 2. Exothermic dissolution; heat is evolved. 3. total volume of solution is equal to sum of volumes of the components. 3. Volume is increased after dissolution. 3. Volume is decreased during dissolution. 4. i.e., 4.    4.    5. interactions should be same, i.e., 'A' and 'B' are identical in shape, size and character. 5. attractive force should be weaker than and attractive forces. 'A' and 'B' have different shape, size and character. 5. attractive force should be greater than and attractive forces. 'A' and 'B' have different shape, size and character. 6.   Escaping tendency of 'A' and 'B' should be same in pure liquids and in the solution. 6.   'A' and 'B' escape easily showing higher vapour pressure than the expected value. 6.   Escaping tendency of both components 'A' and 'B' is lowered showing lower vapour pressure than expected ideally. Examples: Dilute solutions; benzene + toluene: n-hexane + n-heptane; chlorobenzene + bromobenzene; ethyl bromide + ethyl iodide; n-butyl chloride + n-butyl bromide Examples:   Acetone +ethanol   acetone + :   water + methanol;   water + ethanol; toluene; ;   acetone + benzene; ;   cyclohexane + ethanol Examples: Acetone + aniline; acetone + chloroform; ; chloroform + diethyl  ether; water + HCl; acetic acid + pyridine; chloroform + benzene

#### Graphical representation of ideal and non-ideal solutions • 2

great work ishan......

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The differences between ideal and non ideal solutions • 10
no intraction  between the components in ideal solution whereas
there is intraction between the component in non ideal solution
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Ideal sols obey raoult's law and non-ideal sols do not obeys raoult's law.
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Henry's law • 6
Ideal solution: The Change in Volume & Enthalpy of solution remains ZERO.....i.e. Constant...

Non ideal solution: just opposite of ideal solution
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Hi
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Ideal law is similar to Raoult's law and non ideal solution is not similar to Raoult's law • -5
Ideal solution- 1. The completely miscable liquid pairs which obey Raoult's law over the whole concentration range are known as Ideal solutions. 2. Enthalpy of mixing is zero. 3. Volume of mixing is zero. Non-ideal solution- 1. The completely miscable pairs which do not obey Raoult's law are called non-ideal solutions. 2. Enthalpy of mixing is not zero. 3. Volume of mixing is not zero.
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mihyaooo0ooo
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Ideal solution---
Which follows roult's law
?H=0
?V=0
Non ideal solution-----
Which does not follow roult's law
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Ideal solution behaves according to raoult's law in every condition but non ideal behaves according to raoult's in some condition.
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ideal solution obeys Raoult's law over entire range of conditions while the non ideal solution do not obeys Raoult's law .
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Ideal solution is one which obeys Raoult's law. Non ideal solution is one which does not obey the Raoult's law.
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The solutions which obey Rault's law at all composition of solute in solvent at all temperature are called ideal solution. Is a solution with thermodynamics properties analogous to there of mixture of ideal ideal gases..

Rault?s law : It state that the partial vapour pressure of each component of an ideal mixture liquid is equal to the vapour pressure of the pure component multiplied by its mole fraction in the mixture ..

A non ideal solution is a solution that doesn't abide the rules of an ideal solution where the interaction between the molecules are identical to interaction between molecule of different components..

Hope it helps
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The solutions which obey Rault's law at all composition of solute in solvent at all temperature are called ideal solution. Is a solution with thermodynamics properties analogous to there of mixture of ideal ideal gases..

Rault?s law : It state that the partial vapour pressure of each component of an ideal mixture liquid is equal to the vapour pressure of the pure component multiplied by its mole fraction in the mixture ..

A non ideal solution is a solution that doesn't abide the rules of an ideal solution where the interaction between the molecules are identical to interaction between molecule of different components..
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Ideal solution:
The solutions which obey Raoult's Law exactly at all concentrations and temperature are called ideal solutions.
Non-Ideal soln. :
The solutions which don't obey Raoult's Law is called non ideal soln.

Got it!
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ideal solutions are those solution which follow Raohult's law over the entire range of concentration where as non ideal solutions are those solutions which do not obey Rahul's law over entire range of concenteration
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Differences:
Ideal solns obeys raoults law whereas non ideal solns do not obeys raults law.
In ideal solns, enthalpy of mixing is zero whereas in non ideal solns entalpy of mixing is not equal to zero.
There is no change of vol. on mixing in case of ideal solns whereas there is change in vol. In case of non ideal solns
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Ideal solution pv= rt
Non ideal does not follow this equation
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Ideal solution depends on Roult's law
But non ideal solution not depends on Roult's law, that's it
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which solution is obeyed raoults law is called ideal gas & they do not obey raoults law is called non ideal gas
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Ideal solution follow raoults law whereas non idel solution do not follow raoults law
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Ideal solution is defined as the solution which obey Rault's Law whereas non-ideal solution are those which do not obeys Rault's law.
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*Ideal Solutions:*
A solution is called ideal solution if it obeys Raoult's law over a wide range of concentration at a specific temperature.
The enthalpy of mixing of the pure components to form the solution is zero and volume of mixing is also zero.
pA=(p?A)(xA) and pB=(p?B)(xB)
?Hmix=0, ?vmix=0,
The force of attraction between A-A and B-B is nearly equal to A-B.
Examples:
1. n-hexane
2. Ethyl bromide and Ethyl chloride,
3. Benzene and Toluene
4. Chlorebenzene and Bromobenzene

*Non-Ideal Solutions:*
A solution which does not obey Raoult's law for all concentration is called a non-ideal solution.
pA is not equal to (p?A)(xA) and pB is not equal to (p?B)(xB)
Also, ?Hmix and ?vmix are not equal to zero
The force of attraction between A-A and B-B is not equal to A-B.
Examples:
1. Water and Ethanol
2. Chloroform and Acetone
3. Ethanol and Cyclohexane
A non- ideal solution can show either positive or negative deviation from Raoult's law
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Ideal solutions are those which obeys raoults law .
And non ideal solutions are those which does not depend on raoults law.
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Hope it helps?? • 0
ideal solution are the solutions which obey Raoult's law wheares non ideal solution do not obey Raoult's law
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Ideal solutions are the solutions which obey raoult's law
Here A.A=B.B=A.B interactiom
And

Non Ideal solutions are the solutions which do not obey raoult's law
Non ideal solutions are of two types
1-Positive deviation:
The type of solutions in which the calculated vapour pressure is more than the predicted one
In this type of solution A.A is weaker than A.A and B.B interaction

2-Negative deviation:
The type of solutions in which the calculated vapour pressure is less than the predicted one
In this type of solution A.A is stronger than A.A and B.B interaction

Hope it helps :)
Have a grt day!
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ideal solution are the solutions which obey Raoult 's law wheares non ideal solution do not obey Raoult's law.
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The main?difference between ideal solution?and?non ideal solution?is that the intermolecular interactionsbetween?all the molecules are the same in?ideal solutions?whereas the intermolecular interactions?betweensolute molecules and solvent molecules are different from each other in?non ideal solutions.
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Difference between ideal and non ideal solution
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Ideal sol. Are those which obeys raoults law
Non ideal sol. Are those which not obeys raoults law
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ideal solution follow Rault,s law and non ideal solution obey Rault s law
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ideal solution follow Rault,s law and non ideal solution obey,s Raults law
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Dear friend*
1)ideal solutions is that solution which obeys Raoult's law .there will be no change in volume on mixing 2 components. In ide solns.there is no change in enthalphy also.
2) non ideal solutions is that solution which doesnot obeys the Raoult law .there is change in volume and ethaphy when mixxing the 2 components...
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Intermolecular interactions between all the molecules are same is known as ideal solution.
Intermolecular interactions between solute molecules and solvent molecules are different from each other is known as non ideal solution
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Ideal solution obey the roult law.
Non ideal does not obey roult law.
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Ideal solutions are those which-
1)obey raoult's law.
2)the solute,solvent and solutions particles interaction are same.
3) solute and solvent molecules have almost similar structure and polarity.
4)volume change must be zero.
5) enthalpy changes must be zero.
Ex- n-heptane and n-hexane etc.

Non ideal are those which-
1)not obey raoult'law
2)the solute,solvent and solutions particles interaction are not same.
3) solute and solvent molecules not having similar structure and polarity.
4)volume change must not be zero.
5) enthalpy changes must not be zero.
Ex- water and HCl etc.
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Diff
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In ideal delta H and delta V both are equal to Zero. But in non-ideal solution delta H and delta V both are not equal to Zero
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Idaeal sol follow roults law and non ideal do not follow roults law
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An ideal solution is a compound which obeys Raoult's law under all conditions of pressure and temperature.
And a non-ideal solution does not follow Raoult's law.
Hope this helps you :)
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Ideal solutions are the solutions which follow Raoult's law and it is also called as positive deviation whereas Non ideal solution are the solution which do not follow Raoult's law and it is also called as negative deviation.
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Ideal solution is the followed by Roults law.
Non Ideal solution does not followed Roults law.
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It obeys raoults law for long per
iod
It does not obeys raoults law for long period
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Yes good
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IDEAL SOLUTIONS

1. Those solutions which obey's roults law over the entire range of concentration.

2. There is no enthalpy change when components of solution are mixing delta H mixing zero

3. Delta V mixing zero

NON- IDEAL
1. Doesn't obeys roults law .
2. Delta H mixing not zero.
3. Delta V mixing not zero.
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Ideal solution-It obeys Raoult?s law for all the concentration and temperature ranges.
Non ideal solution-When a solution does not obey Raoult?s law for all the concentration and temperature ranges it is known as a non-ideal solution
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ideal solution : these are the solution which follow roult's law over all temperature
Non - ideal solution:these are the solution. which does not follow roult's law at any temperature
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Ideal solution: these are the solution which follow roult's law over all range of concentration
Non ideal solution:these are the solution which doesn't follow the roult's law
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In non ideal solution does not follow raoult's law ver entire range of concentration
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