The reaction 2 NOCl(g) 2 NO(g) + Cl2(g) has an Ea of 1.00 102 kJ/mol and a rate constant of 0.286 L/mol·s at 500. K. What is the rate constant at 475 K? (Use 8.314 J/mol·K for R.)The reaction 2 NOCl(g) 2 NO(g) + Cl2(g) has an Ea of 1.00 102 kJ/mol and a rate constant of 0.286 L/mol·s at 500. K. What is the rate constant at 475 K? (Use 8.314 J/mol·K for R.).