Question:medium

In which of the following processes, heat is neither absorbed nor released by a system?

Updated On: Apr 24, 2026
  • isothermal
  • adiabatic
  • isobaric
  • isochoric
Show Solution

The Correct Option is B

Solution and Explanation

To determine which process involves neither absorption nor release of heat by a system, we need to understand the characteristics of each given thermodynamic process.

  • Isothermal Process: In an isothermal process, the temperature of the system remains constant. However, heat exchange with the surroundings occurs to maintain this constant temperature.
  • Adiabatic Process: In an adiabatic process, there is no exchange of heat between the system and its surroundings. Thus, the heat absorbed or released by the system is zero.
  • Isobaric Process: An isobaric process occurs at constant pressure, but it can involve heat transfer.
  • Isochoric Process: In an isochoric process, the volume remains constant. There can be heat transfer resulting in a change in internal energy but no work done by or on the system as the volume is constant.

From the descriptions above, the correct answer is the adiabatic process, in which there is no heat exchange with the surroundings. This means that heat is neither absorbed nor released by the system.

Therefore, the correct option is: adiabatic.

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