Chemical Thermodynamics Question 162

Question: Molar heat of vaporisation of a liquid is 6kJ,mol1 . If the entropy change is 16J,mol1,K1 , the boiling point of the liquid is [KCET 2005]

Options:

A) 375oC

B) 375K

C) 273K

D) 102oC

Show Answer

Answer:

Correct Answer: B

Solution:

ΔS=16J,mole1K1

Tb.p.=ΔHvapourΔSvapour=6×100016=375K



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