Student Login

Home›Chapters›Thermodynamics PYQs›Thermodynamic Processes›Question 76

MHT CET 2025 (19 Apr, Shift 2) · Thermodynamic Processes

Thermodynamic Processes question from MHT CET 2025 (19 Apr, Shift 2)

Q76MHT CET 2025 · 19 APR · SHIFT 2Medium

Thermodynamic Processes

A monoatomic ideal gas is heated at constant pressure. The percentage of total heat used in increasing the internal energy and that used for doing external work is $A$ and $B$ respectively. Then the ratio, $A : B$ is

Show answer and solution

Answer: (c)

Monatomic, isobaric: $\Delta U : W : Q = C_v : R : C_p = \dfrac{3}{2} : 1 : \dfrac{5}{2}$ .
$A = \dfrac{3}{5} = 60\%$ , $B = \dfrac{2}{5} = 40\%$
$A : B = 3 : 2$ , so the answer is (c).

Report a mistake

More questions on Thermodynamic Processes

An ideal gas goes from an initial state to final state. During the process, the pressure…JEE Main 2025 (24 Jan, Shift 1)
The temperature of 1 mole of an ideal monoatomic gas is increased by 50 at constant…JEE Main 2025 (24 Jan, Shift 1)
A gas having γ = 5/2 and volume 360 c.c. is suddenly compressed to 90 c.c. If the initial…MHT CET 2025 (5 May, Shift 2)
An ideal gas expands adiabatically, (γ = 1.5). To reduce the r.m.s. velocity of the…MHT CET 2025 (26 Apr, Shift 1)
A monoatomic ideal gas is compressed adiabatically to (1/27) of its initial volume. If…MHT CET 2025 (25 Apr, Shift 1)
A polyatomic gas is compressed to (1/8) th of its volume adiabatically. If its initial…MHT CET 2025 (23 Apr, Shift 1)
A diatomic gas (γ = 7/5) is compressed adiabatically to volume V₀/32, where V₀ is its…MHT CET 2025 (20 Apr, Shift 1)
A monoatomic gas having γ = 5/3 is stored in a thermally insulated container and the gas…JEE Main 2025 (8 Apr, Shift 2)