For a reaction, Delta * H ^ 0 = - 75KJ / m * o * l and triangle S^ 0 =-0.081KJ/(K* mol) . At what temperatures is this reaction spontaneous?

At temperatures below 924.93K.

Explanation:

Hello there!

In this case, according to the thermodynamic definition of the Gibbs free energy of reaction:

Now, for us to determine the correct temperature range, we must make ΔG=0 and solve for T:

Thus at temperatures below 925.93 K we will have an spontaneous reaction (ΔG<0).

Regards!

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.