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  4. What is the value of (R/Cp) for a diatomic gas?

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Q. What is the value of $\frac{R}{C_{p}}$ for a diatomic gas?

Rajasthan PMTRajasthan PMT 2002Thermodynamics

Solution:

Specific heat at constant pressure for diatomic gas
$C_{p}=\frac{7}{2} R$
$\frac{R}{C_{p}}=\frac{2}{7}$