At 500 K in the presence of a copper surface, ethanol decomposes according to the following equation.
C2H5OH(g) CH3CHO(g) + H2(g)
The pressure of C2H5OH was measured as a function of time and the following data were obtained.
Time (s) PC2H5OH (torr)
0 250.
100. 237
200. 224
300. 211
400. 198
500. 185
Using the above data, deduce the rate law
a) Rate = k[C2H5OH]2
b) Rate = k[C2H5OH]
c) Rate = k[C2H5OH] / [H2]
d) Rate = k[C2H5OH] / [CH3CHO]
e) Rate = k
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