Butadiene reacts to form it's dimer accorging to the equation 2C4H6(g) ->C8H12(g). The following data were collected for this reaction at a given temp

C4H6mol/l...................time+- 1s

.0100.............................0

.00625...........................1000

.00467...........................1800

.00370...........................2800

.00313...........................3600

.00270...........................4400

.00241...........................5200

.00208...........................6200

a) is the reaction first of second order (please show me without graphing if possible)

b) What is the value of the rate constant for this reaction

c) what it the half life of the reaction under the conditions of this experiment