Which of this is constant in isochoric process?

Explanation

In an isochoric process, also known as an isovolumetric or constant volume process, the volume of the system remains constant throughout the entire process. As a result, the quantity that remains constant in an isochoric process is the volume (V).In an isochoric process, the system does not perform any work on its surroundings or have work done on it. Therefore, the work done (W) during the process is zero. Additionally, since the volume remains constant, there is no change in the volume (ΔV = 0).However, other thermodynamic properties can change in an isochoric process. For example:1. Pressure (P): The pressure can change as heat is added or removed from the system, affecting the temperature.2. Temperature (T): The temperature can change due to the addition or removal of heat, but the change in temperature does not lead to any volume change in an isochoric process.3. Internal Energy (ΔU): The internal energy of the system can change due to the transfer of heat, as no work is done in an isochoric process.In summary, in an isochoric process, the volume (V) remains constant, while other properties such as pressure (P), temperature (T), and internal energy (ΔU) can undergo changes.