chemistry help, por favor?

Question

Given the reaction at equilibrium: http://schoolisland.com/review/Courses/Chem/chem010285-q1.gif
Which change will shift the equilibrium to the right?

increasing the temperature
increasing the pressure
decreasing the amount of SO2(g)
decreasing the amount of O2(g)

Given: http://schoolisland.com/review/Courses/Chem/q2225.gif
Which statement correctly describes the energy changes that occur in the forward reaction?
The activation energy is 10. kJ and the reaction is endothermic.
The activation energy is 10. kJ and the reaction is exothermic.
The activation energy is 50. kJ and the reaction is endothermic.
The activation energy is 50. kJ and the reaction is exothermic.

Answer 1

Increasing the pressure. It relieves the pressure by converting three molecules into two molecules.

The activation energy is 10 kJ and the reaction is exothermic. You see that there is a 10-kJ rise at the beginning, but then the energy goes "downhill" (it's given off).