The Arrhenius activation energy and pre-exponential factor for the reaction H(g) + Br2(g) →HBr(g) + Br(g) are 15.5 kJ mol and 1.09 x 10" dm³ mols, respectively. What are the values AH and A S° at 1000 K based on a standard state of 1.00 mol dm 3? Assume ideal-gas behavior.