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Differentiate between the reversible and irreversible processes.

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Question

Differentiate between the reversible and irreversible processes.

Distinguish Between
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Solution

Sr. No. Reversible process Irreversible process
i. A reversible process is a change that can be retraced in a reverse (opposite) direction. An irreversible process is a change that cannot be retraced in a reverse (opposite) direction.
ii. The path of a reversible process is the same in the forward and the reverse direction. The path of an irreversible process is not the same in the forward and the reverse direction.
iii. Reversible changes are very slow and there is no loss of any energy in the process. There is a permanent loss of energy from the system due to friction or other dissipative forces in an irreversible process.
iv. The system comes back to its initial state after it is taken along the reverse path. The change of state depends upon the path taken to change the state during an irreversible process.
v. Reversible processes are ideal processes. Irreversible processes are real processes.
vi.

p-V diagram:

p-V diagram: 

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Chapter 4: Thermodynamics - Short Answer I

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