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The heat capacity, C P , of liquid carbon disulfide is a relatively constant 78 J...

The heat capacity, C P , of liquid carbon disulfide is a relatively constant 78 J / ( mol ⋅ K ) . However, the heat capacity of solid carbon disulfide varies greatly with temperature. From 89 K to its melting point at 161 K , the heat capacity of solid carbon disulfide increases linearly from 42 J / ( mol ⋅ K ) to 57 J / ( mol ⋅ K ) . The enthalpy of fusion of carbon disulfide is Δ H fus = 4390 J/mol . The absolute entropy of liquid carbon disulfide at 298 K is S = 151 J / ( mol ⋅ K ) . Estimate the absolute entropy of carbon disulfide at 89 K .

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