Heat and Thermal ExpansionHard

Question

Two cylinders A and B fitted with piston contain the equal amount of an ideal diatomic gas at 300K. The piston of A is free to move, while that of B is held fixed. The same amount of heat is given to the gas in each cylinder. If the rise in temperature of the gas in A is 30 K, then the rise in the temperature of the gas in B is :-

Options

A.(T + 2.4) K
B.(T - 2.4) K
C.(T + 4) K
D.(T - 4) K

Solution

nCVᐃT = n ᐃT ⇒ ᐃT = 42oC = 42 K

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