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Chapter 11: Problem 23

How do you calculate the entropy change during a change of state at equilibrium?

Short Answer

Expert verified
The entropy change during a change of state at equilibrium can be calculated using the formula \( \Delta S = Q_{rev}/T \). More specific information about the heat transferred and the temperature is required to compute the entropy change.

Step by step solution

01

Identify the given information

From the problem, we know that the system is at equilibrium, there is a change of state but we need more specific information about the heat transfer and temperature to compute the entropy change.
02

Calculate the entropy change

Once the information about heat and temperature is obtained, substitute these values into the formula to find the change in entropy. Remember the formula is \( \Delta S = Q_{rev}/T \). Here, \( Q_{rev} \) is the heat absorbed or released in a reversible process and \( T \) is the absolute temperature in Kelvin.
03

Understand the result

The result obtained is the entropy change during the change of state at equilibrium. Entropy is a measure of disorder or randomness in a system. If \( \Delta S \) is positive, the system becomes more disordered. In contrast, if \( \Delta S \) is negative, the system becomes more ordered.

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