Answer to Question #334541 in General Chemistry for Meg

Question

Consider the reaction below at 25°C for which ΔS = 16.1 J/K. Show your work.

CH4(g) + N2(g) = HCN(g) + NH3(g)

At what temperature will this reaction be spontaneous?

Answer 1

At a given temperature of 25 degrees Celsius (low temperature), this reaction is non-spontaneous because of a positive value of Gibbs energy.

For the spontaneous process, the value of Gibbs energy must be negative.

Hence, this reaction is spontaneous at high temperatures.