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A gas absorbs `250 J` of heat and expands from `1` litre to `10` litres against the pressure `0.5` atmosphere at constant temperature. The values of `q`, `w` and `DeltaE` are respectivelyA. `+250`, `-455 J`, `-205 J`B. `250J`, `455 J`, `205 J`C. `-250J`, `205 J`, `455 J`D. `-205J`, `-250 J`, `-455 J` |
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Answer» Correct Answer - A `q=250 J`, `W=-P(V_(2)-V_(1))` `=-0.5(10-1)=4.5 L-"atm"` `=-4.5xx101J=-455J` `DeltaE=q+w=250+(-455)` `=-205 J` |
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