Entropy is a measure of .......

For a reversible adiabatic expansion of an ideal gas,which of the following is equal to zero?

The positive value of $\Delta S$ indicates that

The process with negative entropy change is

The enthalpy of fusion of water is $1.435 \ kcal/mol$. The molar entropy change for the melting of ice at $0 \ ^\circ C$ is

Find the change in entropy for the fusion of $1 \, mol$ of ice in $J \, K^{-1} \, mol^{-1}$. The melting point of water is $273 \, K$ and the molar enthalpy of fusion for water is $6.0 \, kJ \, mol^{-1}$.