3. In both the ammonia, NH3, synthesis and the production of SO3, according to ... N2(g) + 3 H2(g) 2 NH3(g) AH = - 92 kJ 2 SO2(g) + O2(g) 2 SO3(g) AH = - 180 kJ The mole fraction at equilibrium of the desired product (NH3, and SO3), is greater at lower temperatures. Yet, in the commercial production of these substances relatively high temperatures are used. Explain why this is so.

3. In both the ammonia, NH3, synthesis and the production of SO3, according to ... N2(g) + 3 H2(g) 2 NH3(g) AH = - 92 kJ 2 SO2(g) + O2(g) 2 SO3(g) AH = - 180 kJ The mole fraction at equilibrium of the desired product (NH3, and SO3), is greater at lower temperatures. Yet, in the commercial production of these substances relatively high temperatures are used. Explain why this is so.