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(a) the melting of 1.09 mol NH3(s) at its normal melting point Ssurr JK-1 Ssystem JK-1 (b) the freezing of 1.
(a) the melting of 1.09 mol NH3(s) at its normal melting pointJ·K-1J·K-1(b) the freezing of 1.09 mol CH3OH(l) at its normal freezing pointJ·K-1J·K-1(c) the vaporization of 1.09 mol H2O(l) at its normal boiling pointJ·K-1J·K-1