Question
In which of the following processes the internal energy of system remain constant?
MHT CET
Chemistry
Thermodynamics (C)
2026
MHT CET 2026 (13 April Shift 2)
MHT CET Chemistry Question (2026) — Solution
Options
- A. Isobaric Process
- B. Isochoric Process
- C. Isothermal Process
- D. Adiabatic Process
Answer
C. Isothermal Process
Step-by-step solution
The internal energy of an ideal gas is a function of its temperature only, given by U = f 2 n R T. For the internal energy to remain constant, the change in temperature must be zero ( T = 0). A process in which the temperature of the system remains constant is known as an isothermal process. Therefore, the internal energy of the system remains constant in an isothermal process. Answer: Isothermal Process
Related: Chemistry — Thermodynamics (C) · All PYQ Banks