A reaction is represented by the equation below. A_2(g) + B_2(g) 2AB_(g); ∆H = +X kJmol^-1 Which of the following statements about the system is correct?

• A The reaction goes to completion at equilibrium
• B The forward reaction is exthermic
• C At equilibrium increase in temperature favours the reverse reaction
• D Pressure has no effect on the equilibrium mixture