The standard molar entropy of H 2 O ( l ) is 70 J K –1 mol –1 . Will the standard molar entropy of H 2 O(s) be more, or less than 70 J K –1 mol –1 ?

Question

Philoid · Accepted Answer

o The standard molar entropy is the measure the disorderliness or randomness in per mole of a substance.

o The standard molar entropy of H₂O (l ) is 70 J K^–1 mol^–1. The solid form of water is ice, in which position of molecules is quite fixed; therefore the disorderliness or randomness in solid molecules is less than the liquid form where the molecular orientation is more random.

Hence, entropy of H₂O(s) 2O (l ) . The standard molar entropy of H₂O(s) will also be less than 70 J K^–1 mol^–1 .

The standard molar entropy of H2O (l ) is 70 J K–1 mol–1. Will the standard molar entropy of H2O(s) be more, or less than 70 J K–1 mol–1?

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