1.

In a reaction ,A + B to C, the rate expression is R = K[A] [B]^(2) . If the concentration of both the reactants is doubled at constant volume then the rate of reaction will be

Answer»

Eight TIMES
DOUBLE
Quadruple
TRIPLE

Solution :For the REACTION `[A + B to C]`
Rate = R = `K[A][B]^(2)`
If [A] = [2A] and [B] = [2B]
then new Rate = `R' = K[2A] [2B]^(2)`
`(R')/(R) = (K[2A][2B]^(2))/(K[A][B]^(2)) implies (R')/(R) = 8 implies R = ' = 8R`.


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