Dependence of Rate on Concentration
CHXII04:CHEMICAL KINETICS

320197 The rate law equation for a reaction between \(\mathrm{A}, \mathrm{B}\) and \(\mathrm{C}\) is \(\mathrm{r}=\mathrm{k}[\mathrm{A}][\mathrm{B}][\mathrm{C}]^{2}\), what will be new rate of reaction if concentration of both \(\mathrm{A}\) and \(\mathrm{B}\) are doubled.

1 \(2 \mathrm{r}\)
2 \(4 r\)
3 \(6 \mathrm{r}\)
4 \(8 r\)
CHXII04:CHEMICAL KINETICS

320198 The rate of reaction between \(\mathrm{BrO}_{3}^{-}\)and \(\mathrm{Br}^{-}\)is given by the rate law:
\(\frac{{{\rm{d}}\left[ {{\rm{BrO}}_{\rm{3}}^{\rm{ - }}} \right]}}{{{\rm{dt}}}}{\rm{ = k}}\left[ {{\rm{BrO}}_{\rm{3}}^{\rm{ - }}} \right]\left[ {{\rm{B}}{{\rm{r}}^{\rm{ - }}}} \right]{\left[ {{{\rm{H}}^{\rm{ + }}}} \right]^{\rm{2}}}\)
This indicates :

1 The rate constant of overall reaction is \({\rm{4}}{{\rm{s}}^{{\rm{ - 1}}}}\)
2 The rate of reaction is independent of acid concentration
3 Change in pH will not affect the reaction rate
4 The rate will be 4 times on doubling the concentration of \({{\rm{H}}^{\rm{ + }}}\) ions
CHXII04:CHEMICAL KINETICS

320199 According to law of mass action, rate of a chemical reaction is proportional to

1 concentration of reactants
2 molar concentration of reactants
3 concentration of products
4 molar concentration of products
CHXII04:CHEMICAL KINETICS

320200 For the process \(2 \mathrm{~A} \rightarrow\) products, rate of reaction w.r.t \({\text{A}}\) at 10 seconds is \(2 \times 10^{-2} \mathrm{Ms}^{-1}\) then rates of same process at 5 and 15 seconds \(\quad(\) order \(\neq 0\) ) respectively are (in \(\mathrm{M} / \mathrm{s}\) )

1 \({\text{1}}{{\text{0}}^{{\text{ - 1}}}}{\text{& 4 }} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
2 \({\text{2}}{\text{.7}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 1}}{\text{.6}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
3 \({\text{1}}{\text{.6}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 2}}{\text{.7}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
4 \({\text{2}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 2}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
CHXII04:CHEMICAL KINETICS

320197 The rate law equation for a reaction between \(\mathrm{A}, \mathrm{B}\) and \(\mathrm{C}\) is \(\mathrm{r}=\mathrm{k}[\mathrm{A}][\mathrm{B}][\mathrm{C}]^{2}\), what will be new rate of reaction if concentration of both \(\mathrm{A}\) and \(\mathrm{B}\) are doubled.

1 \(2 \mathrm{r}\)
2 \(4 r\)
3 \(6 \mathrm{r}\)
4 \(8 r\)
CHXII04:CHEMICAL KINETICS

320198 The rate of reaction between \(\mathrm{BrO}_{3}^{-}\)and \(\mathrm{Br}^{-}\)is given by the rate law:
\(\frac{{{\rm{d}}\left[ {{\rm{BrO}}_{\rm{3}}^{\rm{ - }}} \right]}}{{{\rm{dt}}}}{\rm{ = k}}\left[ {{\rm{BrO}}_{\rm{3}}^{\rm{ - }}} \right]\left[ {{\rm{B}}{{\rm{r}}^{\rm{ - }}}} \right]{\left[ {{{\rm{H}}^{\rm{ + }}}} \right]^{\rm{2}}}\)
This indicates :

1 The rate constant of overall reaction is \({\rm{4}}{{\rm{s}}^{{\rm{ - 1}}}}\)
2 The rate of reaction is independent of acid concentration
3 Change in pH will not affect the reaction rate
4 The rate will be 4 times on doubling the concentration of \({{\rm{H}}^{\rm{ + }}}\) ions
CHXII04:CHEMICAL KINETICS

320199 According to law of mass action, rate of a chemical reaction is proportional to

1 concentration of reactants
2 molar concentration of reactants
3 concentration of products
4 molar concentration of products
CHXII04:CHEMICAL KINETICS

320200 For the process \(2 \mathrm{~A} \rightarrow\) products, rate of reaction w.r.t \({\text{A}}\) at 10 seconds is \(2 \times 10^{-2} \mathrm{Ms}^{-1}\) then rates of same process at 5 and 15 seconds \(\quad(\) order \(\neq 0\) ) respectively are (in \(\mathrm{M} / \mathrm{s}\) )

1 \({\text{1}}{{\text{0}}^{{\text{ - 1}}}}{\text{& 4 }} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
2 \({\text{2}}{\text{.7}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 1}}{\text{.6}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
3 \({\text{1}}{\text{.6}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 2}}{\text{.7}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
4 \({\text{2}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 2}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
CHXII04:CHEMICAL KINETICS

320197 The rate law equation for a reaction between \(\mathrm{A}, \mathrm{B}\) and \(\mathrm{C}\) is \(\mathrm{r}=\mathrm{k}[\mathrm{A}][\mathrm{B}][\mathrm{C}]^{2}\), what will be new rate of reaction if concentration of both \(\mathrm{A}\) and \(\mathrm{B}\) are doubled.

1 \(2 \mathrm{r}\)
2 \(4 r\)
3 \(6 \mathrm{r}\)
4 \(8 r\)
CHXII04:CHEMICAL KINETICS

320198 The rate of reaction between \(\mathrm{BrO}_{3}^{-}\)and \(\mathrm{Br}^{-}\)is given by the rate law:
\(\frac{{{\rm{d}}\left[ {{\rm{BrO}}_{\rm{3}}^{\rm{ - }}} \right]}}{{{\rm{dt}}}}{\rm{ = k}}\left[ {{\rm{BrO}}_{\rm{3}}^{\rm{ - }}} \right]\left[ {{\rm{B}}{{\rm{r}}^{\rm{ - }}}} \right]{\left[ {{{\rm{H}}^{\rm{ + }}}} \right]^{\rm{2}}}\)
This indicates :

1 The rate constant of overall reaction is \({\rm{4}}{{\rm{s}}^{{\rm{ - 1}}}}\)
2 The rate of reaction is independent of acid concentration
3 Change in pH will not affect the reaction rate
4 The rate will be 4 times on doubling the concentration of \({{\rm{H}}^{\rm{ + }}}\) ions
CHXII04:CHEMICAL KINETICS

320199 According to law of mass action, rate of a chemical reaction is proportional to

1 concentration of reactants
2 molar concentration of reactants
3 concentration of products
4 molar concentration of products
CHXII04:CHEMICAL KINETICS

320200 For the process \(2 \mathrm{~A} \rightarrow\) products, rate of reaction w.r.t \({\text{A}}\) at 10 seconds is \(2 \times 10^{-2} \mathrm{Ms}^{-1}\) then rates of same process at 5 and 15 seconds \(\quad(\) order \(\neq 0\) ) respectively are (in \(\mathrm{M} / \mathrm{s}\) )

1 \({\text{1}}{{\text{0}}^{{\text{ - 1}}}}{\text{& 4 }} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
2 \({\text{2}}{\text{.7}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 1}}{\text{.6}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
3 \({\text{1}}{\text{.6}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 2}}{\text{.7}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
4 \({\text{2}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 2}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
CHXII04:CHEMICAL KINETICS

320197 The rate law equation for a reaction between \(\mathrm{A}, \mathrm{B}\) and \(\mathrm{C}\) is \(\mathrm{r}=\mathrm{k}[\mathrm{A}][\mathrm{B}][\mathrm{C}]^{2}\), what will be new rate of reaction if concentration of both \(\mathrm{A}\) and \(\mathrm{B}\) are doubled.

1 \(2 \mathrm{r}\)
2 \(4 r\)
3 \(6 \mathrm{r}\)
4 \(8 r\)
CHXII04:CHEMICAL KINETICS

320198 The rate of reaction between \(\mathrm{BrO}_{3}^{-}\)and \(\mathrm{Br}^{-}\)is given by the rate law:
\(\frac{{{\rm{d}}\left[ {{\rm{BrO}}_{\rm{3}}^{\rm{ - }}} \right]}}{{{\rm{dt}}}}{\rm{ = k}}\left[ {{\rm{BrO}}_{\rm{3}}^{\rm{ - }}} \right]\left[ {{\rm{B}}{{\rm{r}}^{\rm{ - }}}} \right]{\left[ {{{\rm{H}}^{\rm{ + }}}} \right]^{\rm{2}}}\)
This indicates :

1 The rate constant of overall reaction is \({\rm{4}}{{\rm{s}}^{{\rm{ - 1}}}}\)
2 The rate of reaction is independent of acid concentration
3 Change in pH will not affect the reaction rate
4 The rate will be 4 times on doubling the concentration of \({{\rm{H}}^{\rm{ + }}}\) ions
CHXII04:CHEMICAL KINETICS

320199 According to law of mass action, rate of a chemical reaction is proportional to

1 concentration of reactants
2 molar concentration of reactants
3 concentration of products
4 molar concentration of products
CHXII04:CHEMICAL KINETICS

320200 For the process \(2 \mathrm{~A} \rightarrow\) products, rate of reaction w.r.t \({\text{A}}\) at 10 seconds is \(2 \times 10^{-2} \mathrm{Ms}^{-1}\) then rates of same process at 5 and 15 seconds \(\quad(\) order \(\neq 0\) ) respectively are (in \(\mathrm{M} / \mathrm{s}\) )

1 \({\text{1}}{{\text{0}}^{{\text{ - 1}}}}{\text{& 4 }} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
2 \({\text{2}}{\text{.7}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 1}}{\text{.6}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
3 \({\text{1}}{\text{.6}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 2}}{\text{.7}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
4 \({\text{2}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}{\text{ & 2}} \times {\text{1}}{{\text{0}}^{{\text{ - 2}}}}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here