Answer to Question #346844 in General Chemistry for cait

Question

consider th following reaction, initially at equilibrium: N2(g) + 3H2(g) 2NH3(g) + 92 Kj J/mol would the reactants or products have the greatest amount of entropy in this rwacion

Answer 1

Formation of ammonia is an exothermic reaction. 

∆S equal for

N₂ – 191,5 J/K

H₂ – 130,5 J/K

NH₃ – 192,6 J/K

N₂ + 3H₂ = 2NH₃

Entropy of reactant =191,5 + 3 *130,5 =583J

Entropy of products = 2 * 192,6 = 385,2 J

ANSWER: the entropy of the reactants is greatest