JEE Main 2026 Physics question
The internal energy of a monoatomic gas is . One mole of helium is kept in a cylinder having internal cross section area of and fitted with a light movable frictionless piston. The gas is heated slowly by supplying heat. If the temperature rises by , then the piston will move cm.
(atmospheric pressure )
Answer: 3
Solution
Sol.
Δ U = 3 × 1 × × 4 = 100 Joule
$Δ
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