For a reversible process, the change in entropy of the system is equal to the heat absorbed divided by the temperature. This is expressed as:

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Q: For a reversible process, the change in entropy of the system is equal to the heat absorbed divided by the temperature. This is expressed as:

Solution: For a reversible process, the change in entropy (ΔS) is given by ΔS = Q/T, where Q is the heat absorbed and T is the temperature.

Steps: 7

Step 1: Understand that entropy (ΔS) is a measure of disorder or randomness in a system.
Step 2: Recognize that for a reversible process, we can calculate the change in entropy using a specific formula.
Step 3: The formula for change in entropy is ΔS = Q/T.
Step 4: In this formula, Q represents the amount of heat absorbed by the system.
Step 5: T represents the absolute temperature at which the heat is absorbed.
Step 6: To find the change in entropy, you divide the heat absorbed (Q) by the temperature (T).
Step 7: This relationship holds true only for reversible processes, meaning the process can go forward and backward without any loss of energy.