K3N(s) + 2 H₂(g) KNH₂(s) + 2 KH(s) AH = -192 kJ/mol Which of

Last updated: 7/23/2022

K3N(s) + 2 H₂(g) KNH₂(s) + 2 KH(s) AH = -192 kJ/mol Which of the following is the most likely reason that the reaction occurs at a significant rate only if the temperature of the reaction mixture is greater than 200°C? A) The reaction is exothermic. B) ΔS for the reaction is negative. C) The reaction has a high activation energy. D) ΔG is negative at temperatures less than 200°C.