Mathematical equation of first law of thermodynamics for isochoric process is

△ U = q_{v}

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- △ U = q_{v}

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q = - W

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△ U = W

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Solution

The correct option is D $△ U = q_{v}$
The first law of thermodynamics says,

$Δ U = q + w$

In an isochoric process, the work done is $0$ since there is no change in volume so no work is done.

So, $Δ U = q_{v}$

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Similar questions

If the first law of thermodynamics is represented by $Δ u = q + w$ . The $q$ & $w$ represent?

Δ U = q + w

Δ U = q + w

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