Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Standard enthalpy of vaporisation 
for water at 
is 40.66 
. The internal energy of vaporisation of water at 
is(Assume water vapour to behave like an ideal gas)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
?
number of gaseous moles of products ‐ number of gaseous moles of reactants
or 37.56 kJ/mol
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