What is meant by a cyclic process ?

Explanation

### Step-by-Step Solution:

1. **Definition of a Cyclic Process**: A cyclic process is a thermodynamic process in which a system undergoes a series of changes and eventually returns to its original state. This means that the initial and final thermodynamic states of the system are the same.

2. **Thermodynamic States**: In thermodynamics, a state of a system is defined by its properties such as pressure, volume, and temperature. When a system returns to its initial state, all these properties have the same values as they were at the beginning.

3. **Path Representation**: The process can be represented graphically on a Pressure-Volume (PV) diagram. In this diagram, the vertical axis represents pressure (P) and the horizontal axis represents volume (V).

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