(Solved): 15) The following reaction is exothermic. Which change will shift the equilibrium to the left? \[ 2 ...

15) The following reaction is exothermic. Which change will shift the equilibrium to the left? \[ 2 \mathrm{SO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g})=2 \mathrm{SO}_{3}(g) \] A) raising the temperature B) removing \( \mathrm{O}_{2} \) C) adding \( \mathrm{SO}_{3} \) D) all of the above E) none of the above 16) Consider the following reaction at equilibrium. What effect will removing \( \mathrm{H}_{2} \mathrm{O} \) have on the system? \[ 2 \mathrm{H}_{2} \mathrm{~S}(\mathrm{~g})+3 \mathrm{O}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{H}_{2} \mathrm{O}(\mathrm{g})+2 \mathrm{SO}_{2}(\mathrm{~g}) \] A) No change will be observed. B) The reaction will shift to the left. C) The equilibrium constant will increase. D) The reaction will shift in the direction of products. E) The equilibrium constant will decrease.