21. Solving a chemistry problem

2. The experimental value of the rate constant of the bimolecular reaction between substances X and Y at 18 C is 4.96*10-4 l mol-1*s-1. Assuming the molecular radii to be 0.264 nm and 0.274 nm, calculate the true and experimental activation energies. The steric factor for this reaction is 0.8, the molar masses are 142 and 96 g*mol-1.