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The Figure Shows a PV Diagram of a Gas for a Complete

Question 25

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The figure shows a pV diagram of a gas for a complete cycle. During part bc of the cycle, 1190 J of heat flows into a system, and at the same time the system expands against a constant external pressure of 7.00×104 Pa7.00 \times 10^4 \mathrm {~Pa} as its volume increases from 0.0200 m30.0200 \mathrm {~m} ^ { 3 } to 0.0800 m30.0800 \mathrm {~m} ^ { 3 } Calculate the change in internal (thermal) energy of the system during part bc of the cycle. If the change is nonzero, be sure to indicate whether the change is positive or negative. The figure shows a pV diagram of a gas for a complete cycle. During part bc of the cycle, 1190 J of heat flows into a system, and at the same time the system expands against a constant external pressure of 7.00 \times 10^4 \mathrm {~Pa} as its volume increases from 0.0200 \mathrm {~m} ^ { 3 } to 0.0800 \mathrm {~m} ^ { 3 } Calculate the change in internal (thermal) energy of the system during part bc of the cycle. If the change is nonzero, be sure to indicate whether the change is positive or negative.

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