Equilibrium I

For 2SO₂(g) + O₂(g) ⇌ 2SO₃(g), ΔH = −197 kJ mol⁻¹. Explain the effect on the equilibrium yield and on Kp of (a) increasing the pressure and (b) increasing the temperature.

Methanol is made from CO and H₂: CO(g) + 2H₂(g) ⇌ CH₃OH(g), ΔH = −91 kJ mol⁻¹. Discuss the choice of conditions (about 250 °C, 50–100 atm, copper-based catalyst) in terms of yield, rate, cost and safety.