Calculate what the molarity of the lemonade would be if you prepared it as directed, using ¾ cup (88 grams) of lemonade to 1 quart (946.35 mL)

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?