4. In the high temperatures reached in an internal combustion engine the nitrogen and oxygen in the air can combine to form nitrogen(II)oxide: N2(g) + O2(g) = 2NO(g)
The value for the equilibrium constant, Kc, is 1.7 x 10 at 2300 K.

(a) Write the equilibrium expression for this reaction.

(b) Explain the effect that increasing the pressure will have on the position of equilibrium.

(c) This reaction is endothermic. Explain the effect that increasing the temperature above 2300 K will have on:

(d) the yield of nitrogen(II) oxide.

e) the rate of the reaction.