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-1?


The standard molar entropy of H2O (l) is 70 JK-1 mol-1. The solid form of H2O is ice. In ice, molecules of H2O are less random than in liquid water.
Thus, molar entropy of H2O (s) H2O (l). The standard molar entropy of H2O (s) is less than 70 JK-1 mol-1.