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JEE Main 202311 AprilEvening Shift
Exam
JEE Main
Year
2023
Date
11 April
Shift
Evening Shift
Subject
Physics
Chapter
Thermodynamics

JEE Main 2023 · 11 April · Evening Shift · Physics · Thermodynamics

The thermodynamic process, in which internal energy of the system...

The thermodynamic process, in which internal energy of the system remains constant is

Options

  1. AIsochoric
  2. BAdiabatic
  3. CIsothermal
  4. DIsobaric

Correct answer

C. Isothermal

Step-by-step solution

An isothermal process is a thermodynamic process in which the temperature of a system remains constant. The transfer of heat into or out of the system happens so slowly that thermal equilibrium is maintained.

\DeltaT=0,\DeltaU=nCV∆T=0\DeltaT = 0, \DeltaU = n{C}_{V} ∆ T = 0.

According to first law of thermodynamics,

∆Q=∆U+∆W⇒∆Q=∆W∆ Q = ∆ U + ∆ W ⇒ ∆ Q = ∆ W

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