Butadiene is prepared by the gas phase catalytic dehydrogenation of 1-butene according to the following equation C_4H_8(gas) doubleheadarrow C_4H_6(gas) + H_2(gas) at 900 K and 1 bar. Find the equilibrium conversion of 1-butene at 900 K and 1 bar. Assume constant heat of reaction.