JEE Main 2026 — Kinetic Theory of Gases Question with Solution
JEE Main 2026 (06 April Shift 2)
Question
If mole of an ideal monoatomic gas at temperature , is mixed with mole of another ideal monoatomic gas at temperature then the temperature of mixture is :
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Using the principle of conservation of internal energy for the mixture of ideal gases:
Since both gases are monoatomic, their molar heat capacities at constant volume are equal ().
Substituting the given values , , , and :
Answer:
Since both gases are monoatomic, their molar heat capacities at constant volume are equal ().
Substituting the given values , , , and :
Answer:
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This is a previous-year question from JEE Main 2026, covering the Kinetic Theory of Gases 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.