Q .     Five moles of Hydrogen initially at STP is compressed adiabatically so that its temperature becomes `673\ K`. The increase in internal energy of the gas, in kJ is:

[`R=8.3` J/mole-K; `\gamma=1.4` for diatomic gas]

EAMCET 2014
A

`80.5`

B

`21.55`

C

`41.50`

D

`65.55`

HINT

Increase in internal energy: `\Delta U = \ frac{f}{2} nR\Delta T`

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