Following is the graph between log T50 and log a (a = initial concentration) for a given reaction at 270C. Hence order is :
A
0
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B
1
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C
2
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D
3
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Solution
The correct option is D 0 As we know, t1/2∞(1a)n−1ort1/2=k(a)1−n log t1/2 = log k + (1 - n) log a (y = c + mx) Slope = (1 - n) = tan 45 = 1 ∴(1−n)=1⇒n=0