JEE Main 2026 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 6 April 2026, Shift 1, Physics Q35

Question 35 of 75 in this shift, Physics question 10 of 25, Section A.

Two closed vessels of same volume are joined through a narrow tube and both vessels are filled with air of pressure 90 kPa and temperature 400 K. Keeping the temperature of one vessel constant at 400 K the second vessel temperature is raised to 500 K. The final pressure in the vessels is ________ kPa.

(1)100Official answer
(2)120
(3)90
(4)105

Official answer

Option 1

NTA final key.

Chapter: Kinetic Theory
Topic: Ideal Gas Laws
Idea tested: Connected Gas Bulbs Equilibrium

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Asked 4× in all

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.