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Monoatomic gas heated at constant pressure: share of heat used for work and for internal energy

The same question, asked 6 times: 3 May 2023 S2, 15 May 2023 S1, 16 May 2023 S2*, 19 Apr 2025 S2*, 22 Apr 2025 S1, 25 Apr 2025 S2. Every wording below, oldest first.

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  1. Question 1

    3 May 2023 S2

    17
    A monoatomic gas is heated at constant pressure. The percentage of total heat used for doing external work is

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  2. Question 2

    15 May 2023 S1

    49
    A quantity of heat QQ is supplied to monoatomic ideal gas which expands at constant pressure. The fraction of heat converted into work is γ=Cp/Cv=5/3\gamma = C_{p}/C_{v} = 5/3

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  3. Question 3

    16 May 2023 S2

    38
    A monoatomic ideal gas is heated at constant pressure. The percentage of total heat used in changing the internal energy is

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  4. Question 4

    19 Apr 2025 S2

    46
    A monoatomic ideal gas is heated at constant pressure. The percentage of total heat used in increasing the internal energy and that used for doing external work is AA and BB respectively. Then the ratio, A:BA:B is

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  5. Question 5

    22 Apr 2025 S1

    27
    When an ideal gas (γ=53)\left( \gamma=\frac{5}{3} \right) is heated under constant pressure, then what percentage of given heat energy will be utilised in doing external work?

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  6. Question 6

    25 Apr 2025 S2

    21
    A sample of an ideal gas (γ=53)\left( \gamma=\frac{5}{3} \right) is heated at constant pressure. If 100 J of heat is supplied to the gas, the work done by the gas is

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