A sample of ammonia at 14 atm and 25 °C in a cylinder fitted with a moveable piston expands against a constant external pressure of 1.00 atm. At equilibrium, the pressure and volume of the gas are 1.00 atm and 23.5 L respectively. The specific heat of ammonia is 0.0258 J g-' K-!. (i) Write the expression for finding q and w for the above processes, in the question what do you know and what do you need to find? (ii) Calculate the q, w and AU for the process.

A sample of ammonia at 14 atm and 25 °C in a cylinder fitted with a moveable piston expands against a constant external pressure of 1.00 atm. At equilibrium, the pressure and volume of the gas are 1.00 atm and 23.5 L respectively. The specific heat of ammonia is 0.0258 J g-' K-!. (i) Write the expression for finding q and w for the above processes, in the question what do you know and what do you need to find? (ii) Calculate the q, w and AU for the process.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter12: Thermodynamic Processes And Thermochemistry

Section: Chapter Questions

Problem 84AP

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