RE-NEET2026Physics-Thermodynamics

RE-NEET 2026 Physics Adiabatic Processes MCQ Question

Type: MCQ-numerical-Medium-Class 11

In an adiabatic expansion, the temperature of one mole of an ideal monatomic gas (γ=5/3) decreases from 60K to 50K. The work done by the gas in the process is : (Take the universal gas constant as R=8.3 J mol⁻¹ K⁻¹)

A

83 J

B

124.5 J

C

166 J

D

41.5 J

Correct Answer

Option A

Detailed Explanation

Using the adiabatic process equation and the given temperatures, the work done can be calculated using the formula W = (nR/(γ-1))(T₁ - T₂).

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