the boiling point of metallic zinc is 920 C yet the carbon reduction operation of zinc oxide is carried out - Chemistry - General Principles and Processes of Isolation of Elements

Question

the boiling point of metallic zinc is 920 C yet the carbon
reduction operation of zinc oxide is carried out at 1300 c-1400 c
why???

Avni · Accepted Answer

The temperature for reduction is selected not on the basis of
boiling point of metal but also on the temperature at which the
bond between metal and oxygen can be broken to form metal and
carbon dioxide The zinc obtained after reduction is in its vapour
form only

the boiling point of metallic zinc is 920 C yet the carbon reduction operation of zinc oxide is carried out at 1300 c-1400 c...why???