che110c_ps2_answer-key

che110c_ps2_answer-key - b. Repeat the calculation in 3a...

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7. The molar enthalpy of vaporization of benzene at its boiling point (80.99 ºC) is 30.72 kJ/mol. a. Assuming that vap H and vap S stay constant at their values at 80.09 ºC, calculate the value of vap G at 75 ºC, 80.09 ºC, and 85 ºC and interpret the G values to predict whether the vaporization will be spontaneous or not at the given temperature (10 pts).
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Unformatted text preview: b. Repeat the calculation in 3a without assuming vap H and vap S are constant. The molar heat capacities of liquid and gaseous benzene are 136.3 J K-1 mol-1 and 82.4 J K-1 mol-1 , respectively (15 pts)....
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This note was uploaded on 06/22/2010 for the course CHEM 21360 taught by Professor Ame during the Spring '09 term at East Los Angeles College.

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che110c_ps2_answer-key - b. Repeat the calculation in 3a...

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