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The principal specific heat of hydrogen ...

The principal specific heat of hydrogen gas at constant pressure and at constant volume are `3400 cal/kg^@ K` and 2400 cal/kg ^@K` respectively. Then the value of J will be
`(R= 8300 J/kmol ^@K, mol wt of H_2 = 2)`

A

`4.18`

B

`4.17`

C

`4.16

D

`4.15`

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