For the reaction, $A ⟶ B$ , the rate of reaction is quardrupled when the concentration of $A$ is doubled. The rate of the reaction is $r = k {[A]}^{n}$ , the value of $n$ is:

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Solution

The correct option is D $2$
If $ϑ_{n e w} = 4 ϑ_{o l d} ϑ_{n e w} = k {[2 A]}^{n} = 4 k {[A]}^{2} = 4 ϑ_{o l d}$
$∴$ Only solution is order $n = 2.$

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For the reaction, A⟶B, the rate of reaction is quardrupled when the concentration of A is doubled. The rate of the reaction is r=k[A]n, the value of n is:

The correct option is D 2If ϑnew=4ϑoldϑnew=k[2A]n=4k[A]2=4ϑold∴ Only solution is order n=2.

For the reaction, $A ⟶ B$ , the rate of reaction is quardrupled when the concentration of $A$ is doubled. The rate of the reaction is $r = k {[A]}^{n}$ , the value of $n$ is:

The correct option is D $2$
If $ϑ_{n e w} = 4 ϑ_{o l d} ϑ_{n e w} = k {[2 A]}^{n} = 4 k {[A]}^{2} = 4 ϑ_{o l d}$
$∴$ Only solution is order $n = 2.$