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Which of the following P-V curve best represents an isothermal process ?

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Important Questions on Thermodynamics

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Work done in given cyclic process is

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The value of η may lie between
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A process can be reversible if
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In practice, all heat engines have efficiency less than that of a Carnot engine because
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A Carnot cycle consists of
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Work done by the system during expansion is _____.
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State the sign conventions used in thermodynamic processes.