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Question

For an elementary reaction aAProduct, the graph plotted between log[d[A]dt] vs. time gives a straight line with intercept equal to 0.6 and showing an angle of 45oC with origin, then:

A
rate constant =3.98 time1 and a=1
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B
rate constant =3.98 mol L1t1 and a=1
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C
rate constant =1.99 time1 and a=1
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D
rate constant =1.99 molL1t1 and a=2
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Solution

The correct option is A rate constant =3.98 time1 and a=1
Rate=dCAdt=KCaA

log[dCAdt]=logK+alogCA

logK=0.6
K=3.98 time1 and

a=1=tan 45o

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