Question

When reaction is at standard state at equilibrium, then:

• A. $\Delta H^{\circ }=0$
• B. $\Delta S^{\circ }=0$
• C. equilibrium constant $K=0$
• D. equilibrium constant $K=1$

Answer 1

Answer: (D)

equilibrium constant $K=1$

If $K$ is equal to 1, the reaction will reach equilibrium as an intermediate mixture, meaning the amounts of products and reactants will be about the same.