Differentiate between Cyclic and Non-cyclic Process.

1.	Differentiate between Cyclic and Non-cyclic Process.
Answer» A cyclic process consists of a series of changes which return the system back to its initial state. In non-cyclic process the series of changes involved do not return the system back to its initial state. (1) In cyclic process change in internal energy is zero and temperature of system remains constant. (2) Heat supplied is equal to the work done by the system. (3) For cyclic process P–V graph is a closed curve and area enclosed by the closed path represents the work done. If the cycle is clockwise work done is positive and if the cycle is anticlockwise work done is negative.

Answer»

A cyclic process consists of a series of changes which return the system back to its initial state.

In non-cyclic process the series of changes involved do not return the system back to its initial state.

(1) In cyclic process change in internal energy is zero and temperature of system remains constant.

(2) Heat supplied is equal to the work done by the system.

(3) For cyclic process P–V graph is a closed curve and area enclosed by the closed path represents the work done.

If the cycle is clockwise work done is positive and if the cycle is anticlockwise work done is negative.

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