Q. Two cylinders A and B fitted with pistons, contains equal number of moles of an ideal monoatomic gas at 400 K. The piston of A is free to move while that of B is held fixed. Same amount of heat energy is given to the gas in each cylinder. If the rise in temperature of the gas in A is 42 K, the rise in temperature of the gas in B is $(\gamma = 5/3)$
A) 25.2 K
B) 35 K
C) 42 K
D) 70 K
Explanation
The correct answer is Option A: 25.2 K.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.