The heat capacity, Cp, 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 75 K to its melting point at 161 K, the heat capacity of solid carbon disulfide increases linearly from 39 J/(mol- K) to 57 J/(mol K). The enthalpy of fusion of carbon disulfide is AHus = 4390 J/mol. The absolute entropy of liquid carbon disulfide at 298 K is S= 151 J/(mol· K).

The heat capacity, Cp, 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 75 K to its melting point at 161 K, the heat capacity of solid carbon disulfide increases linearly from 39 J/(mol- K) to 57 J/(mol K). The enthalpy of fusion of carbon disulfide is AHus = 4390 J/mol. The absolute entropy of liquid carbon disulfide at 298 K is S= 151 J/(mol· K).

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter7: Chemical Energy

Section: Chapter Questions

Problem 62E: In a coffee-cup calorimeter, 1.60 g NH4NO3 is mixed with 75.0 g water at an initial temperature of...

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