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    Question

    If the specific heat at constant pressure Cₚ is

    greater than Cᵥ , the difference Cₚ -Cᵥ is equal to:
    A Work done per mole per Kelvin Correct Answer Incorrect Answer
    B Gas constant R Correct Answer Incorrect Answer
    C Internal energy Correct Answer Incorrect Answer
    D γR Correct Answer Incorrect Answer

    Solution

    For an ideal gas:

    Cₚ  - Cᵥ  = R   Where: Cₚ  = Specific heat at constant pressure Cᵥ = Specific heat at constant volume R = Universal gas constant This is a fundamental thermodynamic relation for ideal gases.

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