What is the melting point of benzene if $\Delta H_{fusion} = 9.95 \ kJ/mol$ and $\Delta S_{fusion} = 35.7 \ J/K \cdot mol$?

What is the change in entropy of the surroundings for the reaction, $H_2(g) + 1/2 O_2(g) \rightarrow H_2O(l)$ at $298 \text{ K}$, if the standard enthalpy of formation of water is $-286 \text{ kJ mol}^{-1}$?

For which of the following reactions will $\Delta S$ be maximum?

An irreversible process occurring isothermally in an isolated system leads to

For the reaction $MgCO_3(s) \rightarrow MgO(s) + CO_2(g)$,the value of $\Delta S$ is:

For the conversion $C$ (graphite) $\to C$ (diamond),the $\Delta S$ is: