For a reversible process, the change in entropy is given by which of the followi

Practice Questions

Q1
For a reversible process, the change in entropy is given by which of the following?
  1. ΔS = Q/T
  2. ΔS = W/T
  3. ΔS = Q + W
  4. ΔS = 0

Questions & Step-by-Step Solutions

For a reversible process, the change in entropy is given by which of the following?
  • 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 exchanged during the process.
  • Step 5: T represents the absolute temperature at which the heat exchange occurs.
  • Step 6: Make sure that the temperature (T) is in Kelvin for the calculation to be correct.
  • Entropy – A measure of the disorder or randomness in a system, which increases in reversible processes.
  • Reversible Process – A process that can be reversed without leaving any change in the system and surroundings.
  • Heat Exchange – The transfer of thermal energy (Q) between a system and its surroundings.
  • Temperature – A measure of the average kinetic energy of the particles in a system, denoted as T.
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