Question

One mole of ice is converted into water at 273 K. The entropies of `H_(2)O(s)` and `H_(2)O(l)` are 38.20 and 60.01 J `mol^(-1)K^(-1)` respectively. Calculate the enthalpy change for this conversion a ?
A. `59.54 J mol^(-1)`
B. `5954 J mol^(-1)`
C. `595.4 J mol^(-1)`
D. `320.6 J mol^(-1)`

Answer 1

Correct Answer - B
`DeltaH=TDeltaS=273xx(60.01-38.20)`
`=5954.13 J mol^(-1)`