Read the assertion and reason carefully to mark the correct option ou...
In a perfectly reversible system, there is no loss of energy. Losses can be minimised, friction can be reduced, the resistance in L-C oscillating system can also be negligible. But one cannot completely eliminate energy losses. This makes a perfectly reversible system, an ideal.
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Read the assertion and reason carefully to mark the correct option ou...
Assertion: Reversible systems are difficult to find in the real world.
Reason: Most processes are dissipative in nature.
The correct option is (a) If both the assertion and reason are true and the reason is the correct explanation of the assertion.
Explanation:
Reversible systems are those systems in which the output can be reversed to obtain the original input without any loss of energy. On the other hand, dissipative systems are those systems in which energy is lost to the surroundings in the form of heat or other forms of energy.
Reversible Systems:
1. Reversible systems are idealized models that assume no energy loss during the process.
2. In a reversible system, the process can be reversed, and the system can return to its original state.
3. Examples of reversible processes include ideal gas expansion or compression, reversible chemical reactions, and reversible heat transfer processes.
Dissipative Systems:
1. Most processes occurring in the real world are dissipative in nature.
2. Dissipative systems are characterized by energy loss to the surroundings.
3. In dissipative systems, the process is irreversible, and the system cannot return to its original state.
4. Examples of dissipative processes include frictional forces, heat transfer through conduction or convection, and chemical reactions with energy release.
Relation between Assertion and Reason:
The assertion states that reversible systems are difficult to find in the real world. This is because most processes are dissipative in nature, as mentioned in the reason. The reason provides an explanation for the assertion by stating that energy loss is common in real-world processes, making reversibility difficult to achieve. Therefore, both the assertion and the reason are true, and the reason correctly explains the assertion.
Conclusion:
In conclusion, reversible systems are rare in the real world due to the prevalence of dissipative processes. Most processes involve energy loss, making it difficult to achieve reversibility. Therefore, the correct option is (a) If both the assertion and reason are true and the reason is the correct explanation of the assertion.
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