Which of the following is a possible set of quantum numbers for an electron?

(1, 1, 0, +½)
(2, 1, 2, +½)
(3, 2, 0, -½)
(3, -2, 1, -½)

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?