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One mole of an ideal gas undergoes a process whose molar heat capacity is `4R` and in which work done by gas for small change in temperature is given by the relation `dW = 2RdT`, then the ratio `(C_(P))/(C_(V))` is

A

`(7)/(5)`

B

`(5)/(3)`

C

`(3)/(2)`

D

2

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The correct Answer is:
C
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