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Question

Isochoric process is also known as

The correct answer is

Constant volume process 

Understanding the Isochoric Process

In thermodynamics, a process refers to a change in the state of a system from an initial state to a final state. These processes can occur under different conditions, such as keeping one of the properties constant.

The question asks for another name for the isochoric process.

An isochoric process is a thermodynamic process in which the volume of the closed system undergoing the process remains constant (isochoric comes from Greek "iso" meaning equal and "choric" meaning space or volume). Because the volume does not change, no work is done on or by the system due to expansion or compression.

Let's look at the options provided:

  • Constant volume process: This definition perfectly matches the description of an isochoric process, where the volume (V) remains constant (\(V = \text{constant}\)).
  • Constant temperature process: This is known as an isothermal process (\(T = \text{constant}\)).
  • Constant pressure process: This is known as an isobaric process (\(P = \text{constant}\)).
  • Constant enthalpy process: This is known as an isenthalpic process (\(H = \text{constant}\)), often seen in throttling processes.

Therefore, the isochoric process is also known as a constant volume process.

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Important Questions from Thermodynamics System and Processes

  1. In a polytropic process described by $PV^n = C$, if the polytropic index $n$ is equal to zero, then the process is characterized by constant
  2. Why do particles in liquid water at 0°C have more energy as compared to particles in ice at the same temperature?

  3. Choose the INCORRECT option for the process and its work done (W) and heat transfer (Q) relations.

  4. For a closed system. identify the processes where the following quantities are zero.

    1. Heat

    2. Work done

    3. Internal Energy

  5. Identify the CORRECT statement with respect to the magnitudes of different quantities for different thermodynamic processes.

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