The element Cesium (Cs) freezes at 24.8 C as well as its molar enthalpy of fusion delta H fusion = 2.09 kJ/mol.?
a) While molten Cs solidifies to Cs (s) at its normal melting point, is the entropy change S positive or negative?
b) Compute the entropy change S when 15.0 g of Cs(l) solidifies at 28.4 C.