Free Energy and Equilibrium

AP Chemistry· difficulty 4/5

A reaction at 298 K has ΔG° = −5.71 kJ/mol.

ΔG° = −5.71 kJ/mol T = 298 K R = 8.314 J/mol·K

What is K?

  • A

    1.0

  • B

    10

    check_circle
  • C

    100

  • D

    0.10

Explanation

ΔG° = −RT ln K. ln K = 5710/(8.314·298) = 2.303. K = e^2.303 = 10.

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