Consider the following reaction:
C₄H₈ (g) -->2C₂H₄₈ (g)
The following data were collected for the concentration of C₄H₈ as a function of time:
Time(s) [C₄H₈](M)
0 1.000
10 0.913
20 0.835
30 0.763
40 0.697
50 0.637

What is the average rate of the reaction between 0 and 10 s?