Helmholtz free energy A. is defined as____________________?
Correct answer: B. A = E - TS
- A. A = H - TS
- B. A = E - TS
- C. A = H + TS
- D. None of these
Explanation
Helmholtz free energy is defined using internal energy as A = U − TS. Since U is also denoted by E, this is written here as A = E − TS, whereas H − TS defines Gibbs free energy.
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