Consider the following reaction for which the change in enthalpy is positive.2 A( g)+B(g)⇌C(g)+D(g)Which of the following will not affect the equilibrium?

2Ag + Bg ⇄  Cg + Dg ;∆H = +veΔn  =  2−3 = –1∴    Increase in pressure favours forward reaction∵    the reaction is endothermic, forward reaction is favoured at high temperature.Addition of A (or) B and removal of C (or) D favours forward reactionCatalyst has no influence on equilibrium state. It increases both rate of forward reaction and rate of backward reaction to the same extent.