Which of the following reactions would be the most spontaneous at 298 k? which of the following reactions would be the most spontaneous at 298 k? a + b → c; e°cell = +1.22 v a + 2 b → c; e°cell = +0.98 v a + b → 3 c; e°cell = +0.15 v a + b → 2 c; e°cell = -0.030 v more information is needed to determine.

The most spontaneous reaction will be

Explanation:

For the reaction to be spontaneous, the Gibbs free energy of the reaction must come out to be negative.

Relationship between standard Gibbs free energy and standard electrode potential follows:

The reaction having highest positive will be the most spontaneous.

Hence, the most spontaneous reaction will be

the answer to this question is 3.