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    Home » The Volume of a Gas Decreases From 500 cc to 300 cc

    The Volume of a Gas Decreases From 500 cc to 300 cc

    Dr. Vikas JasrotiaBy Dr. Vikas JasrotiaDecember 25, 2021No Comments
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    The Volume of a Gas Decreases From

    Que. The volume of a gas decreases from 500 cc to 300 cc when a sample of gas is compressed by an average pressure of 0.6 atm. During this process, 10 J of heat is liberated. Find the change in internal energy

    Ans: We know ΔE = q + W

    Change in Volume (V) = 500 – 300 = 200 cc = 0.2 litre,

    Pressure (P) = 0.6 atm and heat liberated (q) = 10 J

    Work done (W) = PΔV = (0.2 × 0.6) = 0.12 litre – atm

    But 1 litre – atm = 101.3 J.

    Therefor W = 0.12 × 101.3 = 12.156 J.

    We also know that heat is liberated, therefore it would be negative.

    Thus, The change in ΔE = q + W = – 10 + 12.16 = 2.16 J.

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    10 J of heat is liberated. Find the change in internal energy The volume of a gas decreases from 500 cc to 300 cc when a sample of gas is compressed by an average pressure of 0.6 atm. During this process
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