Butadiene reacts to form its dimer according to the equation 2C₂H,(g) → C8H₁2(g) The following data were collected for this reaction at a given temperature: a. 1st order, k=0.0612, half-life=1633.99 b. 2nd order, k=0.0612, half-life=1633.99 2nd order, k=0.0002, half-life-3465 d. 1st order, k=0.0002, half-life=3465 [C₂H] (mol/L) C. 0.01000 0.00625 0.00476 0.00370 0.00313 0.00270 0.00241 0.00208 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? Time (±1 s) 0 1000 1800 2800 3600 4400 5200 6200

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