Question

The standard molar entropy of H₂O(l) is 70 JK^-1 mol^-1 . Will the standard molar entropy of H₂O(s) be more or less than 70 JK^-1 mol?

Answer 1

The standard molar entropy of H₂O(l) is 70 JK^-1 mol^-1 mol1. The solid form of H₂O is ice. Molecules of H₂O are less disordered in ice than in water (l). So, molar entropy H₂O(s)< molar entropy of H₂O(l), So, the standard molar entropy of H₂O(s) will be less than 70 J K^-1 mol^-1 .