Question
The following data was obtaind for the vapour phase decomposition of ethylene oxide into methane and carbon monoxide at 414.5'c. t,min p,mm hg 0 116.6 5 122.56 7 125.72 9 128.74 12 133.23 18 141.37 show that the reaction is first order and calculate the rate constant.Joshi sir comment
C2H4O --------------> CO + CH4
t P (C2H4O)
0 116.6
5 116.6-[122.56-116.6] = 116.6-5.96 = 110.64
7 116.6-[125.72-116.6] = 116.6-9.12 = 107.48
similarly others then find k for different readings by first order equation. k will be same for all readings.
Read 3 Solution.
plot the graph b/w time and pressure to find order
and now decide k by using eqn of straight line ie k= 2.303/t X( log a/ a-x)
SARIKA 11 year ago
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