Answer to Question #117960 in General Chemistry for george

Question

. N2(g) + 3H2(g) == 2NH3(g) ΔH = + 92.5 kJ
What happens to the equilibrium if the following happens:
(a) if the temperature is increased
(b) if a catalyst is added
(c) if H2 is added
(d) if the volume of the reaction vessel is

Answer 1

in accordance with the principle of Le Châtlier

right shift: с) d) (if the volume of the reaction vessel is decreases)

left shift: a), d) (if the volume of the reaction vessel is

is increasing)

b) the catalyst does not affect the value of the equilibrium constant, since it reduces the activation energy of both direct and reverse reactions by the same value and therefore equally changes the rates of direct and reverse reactions