AP EAMCET · PHYSICS · Thermodynamics
Five moles of hydrogen initially at STP is compressed adiabatically so that its temperature becomes \(673 \mathrm{~K}\). The increase in internal energy of the gas, in kilo joule is \((R=8.3 \mathrm{~J} / \mathrm{mol}-\mathrm{K} ; \gamma=1.4\) for diatomic gas \()\)
- A \(80.5\)
- B \(21.55\)
- C \(41.50\)
- D \(65.55\)
Answer & Solution
Correct Answer
(C) \(41.50\)
Step-by-step Solution
Detailed explanation
Work done by an ideal gas is adiabatic expansion \[ \begin{aligned} & d U=n \frac{R}{\gamma-1} d T \\ & d U=n \frac{R}{\gamma-1}\left(T_2-T_1\right) \end{aligned} \] Given…
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