Q. 54.3( 39 Votes )

A first order rea

Answer :

Given-


Rate constant, k = 1.15 × 10-3 s-1


Initial quantity, R0 = 5 g


Final quantity, R = 3 g


According to the formula of first order reaction,




t =


t = 443.8 s


t = 4.438 × 102 s


The time taken for 5g of the reactant to reduce to 3 g is 4.438 × 102 s


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