A : During a cyclic process work done by the system is zero.
R : Heat supplied to a system in the cyclic process converts into internal energy of the system.

Options

A. If both Assertion & Reason are true and the reason is the correct explantion of the assertion, then mark(1)
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).
C. If Assertion is true statement but Reason is false, then mark (3).
D. If both Assertion and Reason are false statements, then mark (4)

Answer

To solve the given question, we need to analyze both the assertion (A) and the reason (R) provided in the statement.

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that "During a cyclic process, work done by the system is zero."
- In a cyclic process, the system returns to its initial state after completing a cycle. Therefore, the net work done over one complete cycle can be zero if the path taken is such that the area enclosed by the path on a P-V diagram is zero. However, this is not generally true for all cyclic processes. In many cases, work can be done by the system.

2. **Understanding the Reason (R)**:
- The reason states that "Heat supplied to a system in the cyclic process converts into internal energy of the system."
- In a cyclic process, the internal energy change (ΔU) is zero because the system returns to its initial state. According to the first law of thermodynamics, ΔU = Q - W. If ΔU is zero, then Q = W, meaning that all the heat supplied is converted into work done by the system, not into internal energy.

3. **Analyzing the Validity of A and R**:
- Since the assertion (A) is not universally true (work done can be non-zero in a cyclic process), it is incorrect.
- The reason (R) is also incorrect because heat supplied does not convert into internal energy; it is converted into work done by the system.

4. **Conclusion**:
- Both the assertion (A) and the reason (R) are incorrect. Therefore, the correct answer is that both statements are false.

### Final Answer:
Both assertion (A) and reason (R) are incorrect.

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