The initial rates of decrease of I_2 in aceto | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Let the rate law be $r = k[I_2]^x [H^{+}]^y [CH_3COCH_3]^z$.Comparing experiments $2$ and $3$: When $[H^{+}]$ and $[CH_3COCH_3]$ are constant,doub

Vedclass · Accepted Answer

$0, 1, 1, 2$

Vedclass · Answer

(C) Let the rate law be $r = k[I_2]^x [H^{+}]^y [CH_3COCH_3]^z$.Comparing experiments $2$ and $3$: When $[H^{+}]$ and $[CH_3COCH_3]$ are constant,doubling $[I_2]$ ($0.01$ to $0.02$) does not change the rate $(0.192)$. Thus,$2^x = 1 \Rightarrow x = 0$.Comparing experiments $1$ and $2$: When $[I_2]$ and $[CH_3COCH_3]$ are constant,doubling $[H^{+}]$ ($0.1$ to $0.2$) doubles the rate ($0.096$ to $0.192$). Thus,$2^y = 2 \Rightarrow y = 1$.Comparing experiments $2$ and $4$: When $[I_2]$ and $[H^{+}]$ are constant,doubling $[CH_3COCH_3]$ ($0.1$ to $0.2$) doubles the rate ($0.192$ to $0.384$). Thus,$2^z = 2 \Rightarrow z = 1$.Total order $= x + y + z = 0 + 1 + 1 = 2$.The orders are $0, 1, 1, 2$.

Similar Questions

The rate law for the decomposition of hydrogen iodide is $-\frac{d[HI]}{dt}=k[HI]^2$. The units of rate constant $k$ are

Which one of the following statements regarding the order of a reaction is not correct?

If the order of a reaction is $x$,then the unit of its rate constant is:

Which among the following statements is $NOT$ true about rate constant?

For the following homogeneous reaction scheme,the rate constant has units for the reaction $A + B \xrightarrow{K} C$:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Experiment	Initial $[I_2]$ $(mol \ L^{-1})$	Initial $[H^{+}]$ $(mol \ L^{-1})$	Initial $[CH_3COCH_3]$ $(mol \ L^{-1})$	Initial rate $(mol \ L^{-1} \ s^{-1})$
$1$	$0.01$	$0.1$	$0.1$	$0.096$
$2$	$0.01$	$0.2$	$0.1$	$0.192$
$3$	$0.02$	$0.2$	$0.1$	$0.192$
$4$	$0.01$	$0.2$	$0.2$	$0.384$