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1. The rate constant for a particular reaction is 1.15 × 105s-1 at 23.7 °C and...

1. The rate constant for a particular reaction is 1.15 × 105s-1 at 23.7 °C and is 6.88 × 105s-1 at 63.2 °C. Calculate the energy of activation, EA for the reaction in kJ/mol.

R = 8.314472 J⋅mol-1⋅K-1. Report your answer to THREE significant figures.

2. What is the correct expression for the equilibrium constant for the following reaction?

2 A + 3 B ⇌ 5 C + 3 D

Kc = [C][D] / [A][B]

Kc = [C]5[D]3 / [A]2[B]3

Kc = [C]2[D]6 / [A]2[B]

Kc = [C]10[D]6 / [A]4[B]6

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