The first law of thermodynamics can be written as $ \Delta U = \Delta Q + \Delta W$ for an ideal gas. Which of the following statements is correct?
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When no heat enters or leaves, $\Delta Q =0$
Therefore, $\Delta U = W$
Hence, it is an incorrect option.
Option:$B$
It is given $\Delta U = Q + W$, So, workisdoneonthegas.
Hence, it is also an incorrect option.
Option:$C$
$\Delta U = nC _v \Delta T$
Since Temperature is constant,
$\Delta U =0$
Therefore, $\Delta U = W$
Hence, it is an incorrect option.
Option:$B$
It is given $\Delta U = Q + W$, So, workisdoneonthegas.
Hence, it is also an incorrect option.
Option:$C$
$\Delta U = nC _v \Delta T$
Since Temperature is constant,
$\Delta U =0$
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