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Relation between Cp and Cv

200 joules of...

Question

200 joules of heat was supplied to a system at constant volume. It resulted in the increase in temperature of the system from 298 to 323 K. What is the change in internal energy of the system?

A

400 J

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B

200 J

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C

50 J

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D

150 J

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Solution

The correct option is C 200 J
At constant volume, $Δ V$ = 0
$w = - P Δ V$ = 0
$Δ U = q = 200 J$

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