Given the following reaction C2H4O(g) ==> CH4(g) + CO(g) and the measured kinetic data below: [ C2H4O(g) ] M

Given the following reaction:
C2H4O(g) ==> CH4(g) + CO(g)

and the measured kinetic data below:
[ C2H4O(g) ] M Rate M/s
2.720 x 10-3 5.570 x 10-7
4.749 x 10-3 1.500 x 10-6

what is the order with respect to (each of the) reactants C2H4O(g)?

[ C2H4O(g) ] M Rate M/s rate/[ C2H4O(g) ] M
2.720 x 10-3 5.570 x 10-7 4883,30
4.749 x 10-3 1.500 x 10-6 3166
rate = k [C2H4O]^p
rate/ [ C2H4O(g) ] M being as shown above this adjusts better to p being 1.78 with k = 48.7