# Problem: What is true if ln K is 1?A. ΔG°rxn is positive and the reaction is spontaneous in the reverse direction.B. ΔG°rxn is positive and the reaction is spontaneous in the forward direction.C. ΔG°rxn is negative and the reaction is spontaneous in the forward direction.D. ΔG°rxn is negative and the reaction is spontaneous in the reverse direction.E. ΔG°rxn is zero and the reaction is at equilibrium.

###### FREE Expert Solution

We’re being asked to determine Gibb's Free energy when K is 1.

Recall that ΔG˚rxn and K are related to each other:

$\overline{){\mathbf{\Delta G}}{{\mathbf{°}}}_{{\mathbf{rxn}}}{\mathbf{=}}{\mathbf{-}}{\mathbf{RTlnK}}}$

###### Problem Details

What is true if ln K is 1?

A. ΔG°rxn is positive and the reaction is spontaneous in the reverse direction.

B. ΔG°rxn is positive and the reaction is spontaneous in the forward direction.

C. ΔG°rxn is negative and the reaction is spontaneous in the forward direction.

D. ΔG°rxn is negative and the reaction is spontaneous in the reverse direction.

E. ΔG°rxn is zero and the reaction is at equilibrium.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Gibbs Free Energy concept. You can view video lessons to learn Gibbs Free Energy. Or if you need more Gibbs Free Energy practice, you can also practice Gibbs Free Energy practice problems.