In a series of experiments on the decomposition of finite oven pentoxide N2O5, rate constants were determined at two different temperatures. At 35 degrees Celsius, the rate of the constant was 1.4x10^-4/s at 45 degrees Celsius the rate constant was 5.0x10^-4/s  a.) what is the activation energy for this reaction ( answer in two sig figs) b.) what is the value of the rate constant at 75degrees C enter the answer in two sig figs

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