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A reaction has a rate constant of 1.20102/s at 400. K and 0.695/s at 450.K. Determine the activation barrier for the reaction. Part B What is the value of the rate constant at 425K ? Consider the following hypothetical molecular collisions and predict which of the following will form potential products, given the values for the energy of activation, Ea, and enthalpy the reaction, H, in combination with the molecular orientation. Check all that apply. Ea=0.59kJ,H=1.28kJ E=2.48kJ,H=5.98kJ ClC4NClN Ea=6.36kJ,H=3.58kJ 4No+ClCEa=4.58kJ,H=+5.38kJ Ea=7.55kJ,H=+9.56kJ ClO+Cl0Ea=0,H=+1.28kJ