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If C(p) and C(v) denoted the specific he...

If `C_(p) and C_(v)` denoted the specific heats of unit mass of nitrogen at constant pressure and volume respectively, then

A

`C_(P) - C_(V) = R//28`

B

`C_(P) - C_(V) = R//14`

C

`C_(P) - C_(V) = R`

D

`C_(P) - C_(V) = 28 R`

Text Solution

Verified by Experts

The correct Answer is:
A
We have , molar heat capacity = molar mass `xx` specific heat capacity per unit mass
`therefore C_(P) = 28 C_(P) ("for nitrogen ") "and" C_(V) = 28C_(V)`
Now `C_(P) - C_(V) = R "or" 28 C_(P) - 28 C_(V) = R`
`implies C_(P) - C_(V) = (R)/(28)`
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ALLEN-GEOMETRICAL OPTICS-EXERCISE - 05 (A)
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