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The number for the expansion 3xx10^(7)+2...

The number for the expansion `3xx10^(7)+2xx10^(2)+5xx10^(1)`
3000025.

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Find: 1.3xx10

The reaction of A_(2) and B_(2) follows the equation A_(2)(g)+B_(2)(g)to2AB(g) The following data were observed {:(,[A_(2)]_(0),[B_(2)]_(0),"Initial rate of appearance of AB(g)(in" Ms^(-1)),(,0.10,0.10,2.5xx10^(-4)),(,0.20,0.10,5xx10^(-4)),(,0.20,0.20,10xx10^(-4)):} The value of rate constatnt for the above reaction is : a) 2.5xx10^(-4) b) 2.5xx10^(-2) c) 1.25xx10^(-2) d) None of these