Question

1.At 450°C, tert-butyl alcohol decomposes into water and isobutene. (CH3)3COH(g) (CH3)2CCH2(g) + H2O(g) A reaction vessel contains these compounds at equilibrium. What will happen if the volume of the container is reduced by 50% at constant temperature?

A. The forward reaction will proceed in order to reestablish equilibrium. B. The reverse reaction will proceed in order to reestablish equilibrium. C. No change occurs. D. The equilibrium constant will increase. E. The equilibrium constant will decrease.

2. The following reaction is at equilibrium in a sealed container. N2(g) + 3H2(g) 2NH3(g); ΔH°rxn < 0 Which, if any, of the following actions will increase the value of the equilibrium constant, Kc?

A. Adding more NH3 B. Adding more N2 C. Increasing the pressure D. Lowering the temperature E. Adding a catalyst 4.At 400ºC, Kc = 64 for the equilibrium H2(g) + I2(g) 2HI(g). If 3.00 mol H2 and 3.00 mol I2 are introduced into an empty 4.0-L vessel, what is the equilibrium concentration of HI at 400ºC? A. 0.15 M B. 1.2 M C. 2.4 M D. 4.8 M E. 5.8 M