Question

For the reaction :

\[\ce{2NO_{(g)} ⇌ N2_{(g)} + O2_{(g)}}\];

ΔH = -heat

K_c = 2.5 × 10² at 298K

What will happen to the concentration of N₂ if :

(1) Temperature is decreased to 273 K.

(2) The pressure is reduced

Answer 1

\[\ce{2NO_{(g)} ⇌ N2_{(g)} + O2_{(g)}}\];

ΔH = -Heat

K_c = 2.5 × 10² at 298K

(1) If temperature is decreased conc. of N₂ will increase [∵ ΔH = -heat]

(2) No effect (∵ `Δ"n"_("g") = 0`)