JEE Main 2026 — Thermodynamics Question with Solution
JEE Main 2026 (02 April Shift 1)
Question
Heat is supplied to a diatomic gas at constant pressure. Then the ratio of is _______.
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
For a diatomic gas, the number of degrees of freedom is .
The molar heat capacity at constant volume is .
The molar heat capacity at constant pressure is .
At constant pressure, the heat supplied is .
The change in internal energy is .
The work done by the gas is .
The ratio is .
Answer:
The molar heat capacity at constant volume is .
The molar heat capacity at constant pressure is .
At constant pressure, the heat supplied is .
The change in internal energy is .
The work done by the gas is .
The ratio is .
Answer:
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This is a previous-year question from JEE Main 2026, covering the Thermodynamics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.