Question

calculate the entropy increase in evaporation of 1mole of h2o at 100.C latent heat of evaporation of h2o at 100.C is 540cal/g​

Answer 1

Explanation:

Heat of vapourisation at 100

0

C=540 Cal/gm

Molar heat of vapourisation =540×18 Cal/gm

ΔS=

T

q

rev

=

373

540×18

ΔS=26.06 Cal/gm