Practice Thermodynamics - CSIR-UGC NET Offered by Unacademy

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Thermodynamics

Quick practice

Question 1 of 5

The molar entropy and $C_{p, m}$ of Ne sample at 298 K is $146.20 \mathrm{JK}^{-1} \mathrm{mol}^{-1}$ and 20.80 $\mathrm{JK}^{-1} \mathrm{mol}^{-1}$ respectively. The molar entropy at constant volume and 500 K temperature of this Ne sample is close to

(Given: $\left.\ln \left(\frac{500}{298}\right)=0.518\right)$

A

$152.67 \mathrm{JK}^{-1} \mathrm{mol}^{-1}$

B

$52.67 \mathrm{JK}^{-1} \mathrm{mol}^{-1}$

C

$222.45 \mathrm{JK}^{-1} \mathrm{mol}^{-1}$

D

$252.67 \mathrm{JK}^{-1} \mathrm{mol}^{-1}$