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Apply the first law of thermodynamics to...

Apply the first law of thermodynamics to an isochoric process explain.

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First law of thermodynamics, `dQ=dU+dW`
For an isochoric process, `dV=0`. Hennce `dW=PdV=0`
`:. dQ=dU`
The amoutn of heat supplied will be used to increases the internal energy of the system.
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