Activation Energy HELP!?

The activation energy for the reaction NO2(g) CO2(g)⟶NO(g) CO(g) is Ea = 275kJ/mol and the change in enthalpy for the reaction is ΔH = -300kJ/mol .

What is the activation energy for the reverse reaction?

Comments on "Activation Energy HELP!?"
More: (x+3y)−(x−y)? Lim x--> infinite 2X Why would we say that it has no limit? Calculate the # of g of solute in the following nitric acid solution... 375 g of a 7.91-M solution with a density of 1.25g/mL.? Does oxygen levels in a certain ambiance/place affect the mental/brain power? Hello were i can find detiled information of helix/doublehelix properities, for calculation?