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  4. For which of the following processes, q=Δ U ?

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Q. For which of the following processes, $q=\Delta U$ ?Chemistry Question Image

Thermodynamics

Solution:

The process at $O \rightarrow D$ completed at constant volume so $\Delta V=0$

as $ W=P \Delta V=0,$ then $; \Delta U=q-W$

$\Rightarrow \Delta U=q-0=q$