Ncert Exercises & Solutions

The standard molar entropy of $H_{2} O (l)$ is $70 {JK}^{- 1} {mol}^{- 1}$ . Will the standard molar entropy of $H_{2} O (s)$ be more, or less than $70 {JK}^{- 1} {mol}^{- 1}$ ?

The standard molar entropy of

H_{2} O (l)

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

H_{2} O (s)

H2O (l). The standard molar entropy of

H_{2} O (s)

is less than

70 {JK}^{- 1} {mol}^{- 1}

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