a flask containing 250mg of air at 27 degree C is heated till 25% of air by mass is expelled - Chemistry - States of Matter

Question

a flask containing 250mg of air at 27 degree C is heated till 25%
of air by mass is expelled from it what is the final temperature of
the flask

Vartika Jain · Accepted Answer

Dear Student,

Letthe volume of he flask be V and the final temperature be TSo, mass of air expelled at T =25100×250=62
5 gMass of air remaining in flask =250-62
5 =187
5 gNow, the volume of total air at higher temperatureV2=V×250187
5and, applying Charles's lawV2T=V300or,T= V2×300V=V×250×300V×187
5=400 K = 127°C

a flask containing 250mg of air at 27 degree C is heated till 25% of air by mass is expelled from it.what is the final temperature of the flask