The product PV, where P and V represent pressure and volume respectively, is a unit for work, therefore the correct option is D,
What is entropy?
It is a property of any thermodynamic system which determines the order of randomness for the given thermodynamic process. The unit of entropy is joules per Kelvin. The entropy of any spontaneous irreversible process is always positive.
entropy can be calculated by mathematical expression
Entropy = Total change of heat / thermodynamic temperature
The thermodynamic work done for a closed system where the process is quasi-static and there is no loss due to friction is represented by the product of the pressure and the differential of the volume.
For a closed reversible process, the work done given by
Work done = P*dV
The product PV represents the amount of flow work done in an open thermodynamic system, where P and V represent pressure and volume respectively, and is a unit for work, therefore the correct option is D.
Learn more about entropy from here the link given below
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