NEET Physics Question - Thermal Physics

Assertion (A): The efficiency of a carnot cycle depends on the nature of the gas used.

Reason (R): Adiabatic process is a part of carnot cycle and work done in adiabatic process does not depend on nature of gas.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

The efficiency of a Carnot engine \(\eta = 1 - \frac{T_c}{T_h}\) depends only on the temperatures of the hot and cold reservoirs, not the nature of the working gas. Work done in an adiabatic process \(W = \frac{nR(T_1 - T_2)}{1 - \gamma}\) depends on \(gamma\) (ratio of specific heats), which is specific to the nature of the gas. Therefore, both Assertion (A) and Reason (R) are false.

Rankers Physics

Carnot Engine Efficiency and Gas Nature

Solution:

Leave a Reply Cancel reply