104. Solving a chemistry problem

For the reaction 2HJ = H2 J2 at 456 K, the reaction rate constant is 0.94210-6 l/(mol*min), and at 700 K k = 0.0031 l/(mol*min) . Calculate the activation energy of the reaction, the van´t Hoff temperature coefficient and the concentration HJ 17 minutes after the start of the reaction at a temperature of 923 K, if the initial concentration of the reagent is 2.28 mol/l.