(C) For a chemical reaction $R \to P$:$1$. The concentration of the reactant $[R]$ decreases over time as it is consumed to form the product.$2$. The

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$[R]$ vs $time$ is a decreasing curve,while $[P]$ vs $time$ is an increasing curve.

(C) For a chemical reaction $R \to P$:$1$. The concentration of the reactant $[R]$ decreases over time as it is consumed to form the product.$2$. The concentration of the product $[P]$ increases over time as it is formed from the reactant.$3$. Therefore,the graph of $[R]$ versus $time$ shows a downward slope (decreasing curve),and the graph of $[P]$ versus $time$ shows an upward slope (increasing curve).

Class 12 Chemistry Chemical Kinetics Rate of a reaction

Easy

For the reaction $R \to P$,describe the nature of the graphs of $[R]$ versus $time$ and $[P]$ versus $time$.

A
Both graphs are straight lines with positive slopes.
B
Both graphs are straight lines with negative slopes.
C
$[R]$ vs $time$ is a decreasing curve,while $[P]$ vs $time$ is an increasing curve.
D
$[R]$ vs $time$ is an increasing curve,while $[P]$ vs $time$ is a decreasing curve.

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Chemical Kinetics

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Rate of a reaction

If the first order reaction involves gaseous reactants and gaseous products,the units of its rate are:

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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 $600 \ s$.

Medium

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For the reaction $4KClO_3 \to 3KClO_4 + KCl$,if $-d[KClO_3]/dt = K_1[KClO_3]^4$,$d[KClO_4]/dt = K_2[KClO_3]^4$,and $d[KCl]/dt = K_3[KClO_3]^4$,then:

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Observe the following reaction: $2 A + B \longrightarrow C$. The rate of formation of $C$ is $2.2 \times 10^{-3} \ mol \ L^{-1} \ min^{-1}$. What is the value of $-\frac{d[A]}{d t}$ (in $mol \ L^{-1} \ min^{-1}$)?

EasyAP EAMCET 2005

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Given above is the concentration vs time plot for a dissociation reaction: $A \rightarrow nB$. Based on the data of the initial phase of the reaction (initial $10 \ min$), the value of $n$ is . . . . . . .

DifficultJEE MAIN 2026

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For the reaction $R \to P$,describe the nature of the graphs of $[R]$ versus $time$ and $[P]$ versus $time$.

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If the first order reaction involves gaseous reactants and gaseous products,the units of its rate are:

For the reaction $4KClO_3 \to 3KClO_4 + KCl$,if $-d[KClO_3]/dt = K_1[KClO_3]^4$,$d[KClO_4]/dt = K_2[KClO_3]^4$,and $d[KCl]/dt = K_3[KClO_3]^4$,then:

Observe the following reaction: $2 A + B \longrightarrow C$. The rate of formation of $C$ is $2.2 \times 10^{-3} \ mol \ L^{-1} \ min^{-1}$. What is the value of $-\frac{d[A]}{d t}$ (in $mol \ L^{-1} \ min^{-1}$)?

Given above is the concentration vs time plot for a dissociation reaction: $A \rightarrow nB$. Based on the data of the initial phase of the reaction (initial $10 \ min$), the value of $n$ is . . . . . . .

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