The equilibrium constant for the reaction of Ni²⁺ with Cd is 1.17 x 10⁵. Calculate the free energy change for the reaction at 25^oC.

Question

Quizplus · Accepted Answer

The free energy change (ΔG) can be calculated using the equation:
ΔG = -RTln(K)
where R is the gas constant (8.314 J/mol·K), T is the temperature in kelvin (298 K), and ln(K) is the natural logarithm of the equilibrium constant (1.17 x 10^15).

Substituting the values and solving for ΔG, we get:
ΔG = -(8.314 J/mol·K)(298 K)ln(1.17 x 10^15)
ΔG = -28.9 kJ

Therefore, the answer is choice B (-28.9 kJ).

The Equilibrium Constant for the Reaction of Ni2+ with Cd

The Equilibrium Constant for the Reaction of Ni²⁺ with Cd