JEE Main 2023 (Online) 31st January Evening Shift | Heat and Thermodynamics Question 75 | Physics

Heat energy of $735 \mathrm{~J}$ is given to a diatomic gas allowing the gas to expand at constant pressure. Each gas molecule rotates around an internal axis but do not oscillate. The increase in the internal energy of the gas will be :

$572 \mathrm{~J}$

$441 \mathrm{~J}$

$525 \mathrm{~J}$

$735 \mathrm{~J}$

JEE Main 2023 (Online) 31st January Evening Shift

MCQ (Single Correct Answer)

-1

A hypothetical gas expands adiabatically such that its volume changes from 08 litres to 27 litres. If the ratio of final pressure of the gas to initial pressure of the gas is $\frac{16}{81}$. Then the ratio of $\frac{\mathrm{Cp}}{\mathrm{Cv}}$ will be.

$\frac{3}{1}$

$\frac{4}{3}$

$\frac{1}{2}$

$\frac{3}{2}$

JEE Main 2023 (Online) 31st January Morning Shift

MCQ (Single Correct Answer)

-1

The pressure of a gas changes linearly with volume from $$\mathrm{A}$$ to $$\mathrm{B}$$ as shown in figure. If no heat is supplied to or extracted from the gas then change in the internal energy of the gas will be

JEE Main 2023 (Online) 31st January Morning Shift Physics - Heat and Thermodynamics Question 90 English