(A) The instantaneous rate $r_{ins}$ at a specific time is given by the negative slope of the tangent to the concentration-time graph at that point. $

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$5.125 \times 10^{-5} \ mol \ L^{-1} \ s^{-1}$

(A) The instantaneous rate $r_{ins}$ at a specific time is given by the negative slope of the tangent to the concentration-time graph at that point. $r_{ins} = -\frac{d[R]}{dt} = -\frac{[R]_2 - [R]_1}{t_2 - t_1}$ Given: $t_2 = 800 \ s, t_1 = 400 \ s$ $[R]_2 = 0.0165 \ mol \ L^{-1}, [R]_1 = 0.037 \ mol \ L^{-1}$ $dt = 800 - 400 = 400 \ s$ $d[R] = 0.0165 - 0.037 = -0.0205 \ mol \ L^{-1}$ $r_{ins} = -\left(\frac{-0.0205 \ mol \ L^{-1}}{400 \ s}\right)$ $r_{ins} = 5.125 \times 10^{-5} \ mol \ L^{-1} \ s^{-1}$

Class 12 Chemistry Chemical Kinetics Rate of a reaction

Medium

In the hydrolysis reaction of butyl chloride,the concentration of reactant at $600 \ s$ is determined using a tangent at $t_2 = 800 \ s$ and $t_1 = 400 \ s$. Given the concentrations $[R_2] = 0.0165 \ mol \ L^{-1}$ and $[R_1] = 0.037 \ mol \ L^{-1}$,calculate the instantaneous rate $r_{ins}$ at $600 \ s$.

A
$5.125 \times 10^{-5} \ mol \ L^{-1} \ s^{-1}$
B
$2.562 \times 10^{-5} \ mol \ L^{-1} \ s^{-1}$
C
$1.025 \times 10^{-4} \ mol \ L^{-1} \ s^{-1}$
D
$5.125 \times 10^{-4} \ mol \ L^{-1} \ s^{-1}$

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Rate of a reaction

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Medium

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For the reaction $2N_2O_5 \rightarrow 4NO_2 + O_2$,if the concentration of $NO_2$ increases by $1.6 \times 10^{-2} \ M$ in $4 \ seconds$,what is the rate of formation of $NO_2$?

Medium

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For the reaction $H_2 + I_2 \rightleftharpoons 2HI$,write the correct relationship between the rates of change of concentration of reactants and products.

Medium

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$A \rightarrow P$ is a first order reaction. The following graph is obtained for this reaction,($x$-axis $=$ time; $y$-axis $=$ concentration of $A$). The instantaneous rate of the reaction at point $C$ is

MediumAP EAMCET 2021

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In the reaction $2N_2O_5(g) \rightarrow 4 NO_2(g) + O_2(g)$, $N_2O_5$ disappears at a rate of $0.06 \text{ mol dm}^{-3} \text{s}^{-1}$. Calculate the rate of formation of $O_2(g)$.

For the reaction $2 NH_{3(g)} \rightarrow N_{2(g)} + 3 H_{2(g)}$,the rate of disappearance of $NH_3$ is $1.2 \times 10^{-3} \ mol \ L^{-1} \ s^{-1}$. What is the rate of formation of $N_2$ and $H_2$?

For the reaction $2N_2O_5 \rightarrow 4NO_2 + O_2$,if the concentration of $NO_2$ increases by $1.6 \times 10^{-2} \ M$ in $4 \ seconds$,what is the rate of formation of $NO_2$?

For the reaction $H_2 + I_2 \rightleftharpoons 2HI$,write the correct relationship between the rates of change of concentration of reactants and products.

$A \rightarrow P$ is a first order reaction. The following graph is obtained for this reaction,($x$-axis $=$ time; $y$-axis $=$ concentration of $A$). The instantaneous rate of the reaction at point $C$ is

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