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Certain amount of heat supplied to an ideal gas under isothermal condition will result in
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external work done by the system
For isothermal process, $\Delta T=$ constant As we know that, from first law of thermodynamics,
$\Delta Q=\Delta U+\Delta W=n C_V \Delta T+\Delta W$
$\Rightarrow \quad \Delta Q=\Delta W \quad[\because \Delta T=0]$
Hence, heat supplied to an ideal gas under isothermal condition will result in external work done by the system.
$\Delta Q=\Delta U+\Delta W=n C_V \Delta T+\Delta W$
$\Rightarrow \quad \Delta Q=\Delta W \quad[\because \Delta T=0]$
Hence, heat supplied to an ideal gas under isothermal condition will result in external work done by the system.
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