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One mole of hydrogen, assumed to be idea...

One mole of hydrogen, assumed to be ideal, is adiabatically expanded from its initial state `(P_(1), V_(1), T_(1))` to the final state `(P_(2), V_(2), T_(2))`. The decrease in the internal energy of the gas during this process will be given by

A

`C_(V)(T_(1)-T_(2))`

B

`C_(P)(T_(1)-T_(2))`

C

`(C_(P)+C_(V))/(2)(T_(1)-T_(2))`

D

`(C_(P)-C_(V))(T_(1)-T_(2))`

Text Solution

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The correct Answer is:
A
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