Explanation Given data: W = 80 J . Formula used: Write the expression for work done by a gas in an isobaric process. W = p Δ V (1) Here, p is the pressure, and Δ V is the change in volume. Write the expression for change in volume ( Δ V ) . Δ V = V f − V i (2) Here, V f is the final volume, and V i is the initial volume. Explanation: Condition for Isobaric process: An isobaric process can happen at a constant pressure. In an isobaric process, the heat energy is transferred out of the gas so that the gas pressure remains constant. Hence final pressure ( p f ) is same as the initial pressure ( p i ) . Consider the gas to be an ideal gas, Refer to FIGURE P12.84 in the textbook. Since it satisfies the constant-pressure process, the type of process used in FIGURE P12.84 is isobaric process. From FIGURE P12.84, p = 200 kPa , V i = 3 V f and V f = V f . Substitute 3 V f for V i and V f for V f in equation (2), Δ V = V f − 3 V f = ( 1 − 3 ) V f = − 2 V f As the gas in FIGURE P12.84 is compressing, modify equation (1) as follows

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ISBN: 9780134700427

Author: Knight

Publisher: PEARSON

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Chapter 12, Problem 84GP

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To find: The final volume (Vf) in cm3.

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Chapter 12, Problem 83GP

Chapter 12, Problem 85GP

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Chapter 12 Solutions

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The final volume ( V f ) in cm 3 .

To find: The final volume (Vf) in cm3.

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Chapter 12 Solutions