The Maxwell relation derived from the differential expression for the Helmholtz free energy (dA) is

• A. (‚Äö√ √áT/‚Äö√ √áV)S = -(‚Äö√ √áP/‚Äö√ √áS)V
• B. (‚Äö√ √áS/‚Äö√ √áP)T = -(‚Äö√ √áV/‚Äö√ √áT)P
• C. (‚Äö√ √áV/‚Äö√ √áS)P = (‚Äö√ √áT/‚Äö√ √áP)S
• D. (‚Äö√ √áS/‚Äö√ √áV)T = (‚Äö√ √áP/‚Äö√ √áT)V