Ammonia is synthesized in the Haber process in the following reaction. $π_2 (π) + 3π»_2 (π) β 2ππ»_3(π)$ The temperature above which the reaction becomes spontaneous is __________ πΎ (rounded off to one decimal place). ($\bigtriangleup π»^0 = β92.2 ππ½, \bigtriangleup π^0 = β199 π½πΎ^{ β1}$ )