The Mathematical Expression for the Change in Free Energy of a System

question 70

Multiple Choice

The mathematical expression for the change in free energy of a system is ΔG =ΔH - TΔS. Which of the following is (are) correct?

• A) ΔS is the change in enthalpy, a measure of randomness.
• B) ΔH is the change in entropy, the energy available to do work.
• C) ΔG is the change in free energy.
• D) T is the temperature in degrees Celsius.

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