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The reaction 2NO(g) + O2(g) + 2NO2(g) is second order in NO and first order in O2. When [NO] = 0.4 M and [O2] = 3.5 M, the observed rate of the reaction is 0.00005208 M/s. (a) What is the value of the rate constant? (b) What are the units of the rate constant? O M-1 M-35-1 O M3s O s-1 O M-15-2 O M's-1 O ms-1 M-25-1 O M-15-1 O The rate constant has no unit. (c) What would happen to the rate if the concentration of NO were increased by a factor of 1.7? O The rate of the reaction would increase O The rate of the reaction would decrease By what factor would the rate of reaction increase? x (d) What is the rate of reaction when [NO] = 0.1 M and [O2] = 0.5 M? M/S