ch18-p048 - Q ab = +8.0 J. (b) The net work (+1.2 J) is the...

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48. (a) We note that process a to b is an expansion, so W > 0 for it. Thus, W ab = + 5.0 J. We are told that the change in internal energy during that process is +3.0 J, so application of the first law of thermodynamics for that process immediately yields
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Unformatted text preview: Q ab = +8.0 J. (b) The net work (+1.2 J) is the same as the net heat ( Q ab + Q bc + Q ca ), and we are told that Q ca = +2.5 J. Thus we readily find Q bc = (1.2 – 8.0 – 2.5) J = − 9.3 J....
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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