Which of the following will require the least time for a reaction to reach equilibrium?
a. Kc is a very small number.
b. Kc is a very large number.
c. Kc is approximately one.
d. Cannot tell without knowing the value of Kc.
e. Cannot tell, since the time required to reach equilibrium does not depend on Kc.
Answer: e. Cannot tell, since the time required to reach equilibrium does not depend on Kc.