If a gas absorbs `200J` of heat and expands by `500 cm^(3)` against a constant pressure of `2 xx 10^(5) N m^(-2)`, then the change in internal energy isA. `-300 J`B. `-100 J`C. `+100 J`D. `+300 J`

If a gas absorbs `200J` of heat and expands by `500 cm^(3)` against a

1.	If a gas absorbs `200J` of heat and expands by `500 cm^(3)` against a constant pressure of `2 xx 10^(5) N m^(-2)`, then the change in internal energy isA. `-300 J`B. `-100 J`C. `+100 J`D. `+300 J`
Answer» `DeltaU = q - w =q -P DeltaV` `= 200 -2xx 10^(5) xx 500 xx10^(-6)` `= 100J`

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If a gas absorbs `200J` of heat and expands by `500 cm^(3)` against a constant pressure of `2 xx 10^(5) N m^(-2)`, then the change in internal energy isA. `-300 J`B. `-100 J`C. `+100 J`D. `+300 J`

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