9.13 6th edition


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Sydney Tay 2B
Posts: 64
Joined: Fri Sep 28, 2018 12:20 am

9.13 6th edition

Postby Sydney Tay 2B » Mon Feb 11, 2019 11:28 pm

During the test of an internal combustion engine, 3.00 L of nitrogen gas at 18.5 $C was compressed suddenly (and irreversibly) to 0.500 L by driving in a piston. In the process, the temperature of the gas increased to 28.1 $C. Assume ideal behavior. What is the change in entropy of the gas?

I know that for this problem we have to calculate the entropy separately and then add them, but for the changing volumes how are we suppose to know what number of moles to use?

Madeline Ho 1C
Posts: 37
Joined: Mon Apr 23, 2018 3:00 am

Re: 9.13 6th edition

Postby Madeline Ho 1C » Tue Feb 12, 2019 12:57 pm

On Lavelle's solution manual error pdf, it explains how to do 9.13. You assume ideal behavior and 1.00 mol N2 gas.

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