For a reversible process, the change in entropy of the system is equal to the heat absorbed divided by the temperature. What is the formula?

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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. What is the formula?

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

Steps: 5

Step 1: Understand that entropy (ΔS) is a measure of disorder or randomness in a system.
Step 2: Recognize that for a reversible process, the change in entropy can be calculated using heat and temperature.
Step 3: Identify the variables: ΔS is the change in entropy, Q is the heat absorbed by the system, and T is the temperature of the system.
Step 4: Write down the formula that relates these variables: ΔS = Q/T.
Step 5: Remember that this formula applies specifically to reversible processes.