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The molar specific heat at constant pres...

The molar specific heat at constant pressure of an ideal gas is `(7//2 R)`. The ratio of specific heat at constant pressure to that at constant volume is

A

`5//7`

B

`9//7`

C

`7//5`

D

`8//7`

Text Solution

Verified by Experts

The correct Answer is:
C
`C_P=7/2 R = (1+f/2)R`
f=5
`C_V=(5R)/(2), therefore gamma =(C_P)/(C_V)=7/5`
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