Butadiene reacts to form its dimer according to the equation 2C₄H₆(g) → C₈H₁₂(g) The following data were collected for this reaction at a given temperature:

a. Is this reaction first order or second order?
b. What is the value of the rate constant for the reaction?
c. What is the half-life for the reaction under the conditions of this experiment?

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[C4H6] (mol/L) 0.01000 0.00625 0.00476 0.00370 0.00313 0.00270 0.00241 0.00208 Time (1 s) 0 1000 1800 2800 3600 4400 5200 6200