Consider the reaction 2P → Q + 3R. In the first experiment, it was found that at 27 °C the rate constant is 1.34 x 10-1 M-1.s-1. A second experiment showed that at 177 °C, the rate constant was 5.69 x 10-1 M-1.s-1 . 4.1. Write down a formula for half-life of this reaction.  4.2. Determine the activation energy for the reaction.

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