Dependence of Rate on Temperature
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CHXII04:CHEMICAL KINETICS

320222 The slope of Arrhenius Plot \(\left( {{\rm{ln}}\,{\rm{k}}\,{\rm{vs}}\frac{{\rm{1}}}{{\rm{T}}}} \right)\) of first order reaction is \(-5 \times 10^{3} \mathrm{~K}\). The value of \(\mathrm{E}_{\mathrm{a}}\) of the reaction is. Choose the correct option for your answer. [Given \(\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\) ]

1 \(83.0 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
2 \(166 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
3 \(-83 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
4 \(41.5 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
NEET - 2021
CHXII04:CHEMICAL KINETICS

320223 The rate constant for the first order decomposition of a certain reaction is described by the equation
\(\ln \mathrm{k}\left(\mathrm{s}^{-1}\right)=14.34-\dfrac{1.25 \times 10^{4} \mathrm{~K}}{\mathrm{~T}}\). The energy of activation for this reaction is

1 \({\text{1}}.{\text{26}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
2 \({\text{4}}{\text{.29}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
3 \({\text{3}}{\text{.12}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
4 \({\text{2}}{\text{.50}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
AIIMS - 2018
CHXII04:CHEMICAL KINETICS

320224 An endothermic reaction \({\text{A}} \to {\text{B}}\) has \({{\rm{E}}_{\rm{a}}}\,\,{\rm{values}}\,\,{\rm{as}}\,\,{\rm{15}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\rm{.}}{\mkern 1mu} {\mkern 1mu} {\rm{Cal/mol}}\) and enthalpy change is \({\rm{5}}\;{\rm{K}}{\rm{.Cal/mole}}\). The \({{\rm{E}}_{\rm{a}}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{B}}{\mkern 1mu} \to {\rm{A}}\) is ( in K.Cal/mole)

1 20
2 15
3 10
4 5
CHXII04:CHEMICAL KINETICS

320225 Slope of the straight line obtained by plotting \(\log _{10} \mathrm{k}\) against \(1 / \mathrm{T}\) represents what term?

1 \({\rm{ - }}{{\rm{E}}_{\rm{a}}}\)
2 \({\rm{ - 2}}{\rm{.303}}{{\rm{E}}_{\rm{a}}}{\rm{/R}}\)
3 \({\rm{ - }}{{\rm{E}}_{\rm{a}}}{\rm{/2}}{\rm{.303R}}\)
4 \({{\rm{E}}_{\rm{a}}}{\rm{/R}}\)
KCET - 2019
CHXII04:CHEMICAL KINETICS

320226 Given that the temperature coefficient for the saponification of ethyl acetate by \(\mathrm{NaOH}\) is 1.75 . The activation energy for the saponification of ethyl acetate is

1 \({\text{10}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
2 \({\text{12}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
3 \({\text{14}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
4 \({\text{16}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
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CHXII04:CHEMICAL KINETICS

320222 The slope of Arrhenius Plot \(\left( {{\rm{ln}}\,{\rm{k}}\,{\rm{vs}}\frac{{\rm{1}}}{{\rm{T}}}} \right)\) of first order reaction is \(-5 \times 10^{3} \mathrm{~K}\). The value of \(\mathrm{E}_{\mathrm{a}}\) of the reaction is. Choose the correct option for your answer. [Given \(\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\) ]

1 \(83.0 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
2 \(166 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
3 \(-83 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
4 \(41.5 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
NEET - 2021
CHXII04:CHEMICAL KINETICS

320223 The rate constant for the first order decomposition of a certain reaction is described by the equation
\(\ln \mathrm{k}\left(\mathrm{s}^{-1}\right)=14.34-\dfrac{1.25 \times 10^{4} \mathrm{~K}}{\mathrm{~T}}\). The energy of activation for this reaction is

1 \({\text{1}}.{\text{26}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
2 \({\text{4}}{\text{.29}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
3 \({\text{3}}{\text{.12}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
4 \({\text{2}}{\text{.50}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
AIIMS - 2018
CHXII04:CHEMICAL KINETICS

320224 An endothermic reaction \({\text{A}} \to {\text{B}}\) has \({{\rm{E}}_{\rm{a}}}\,\,{\rm{values}}\,\,{\rm{as}}\,\,{\rm{15}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\rm{.}}{\mkern 1mu} {\mkern 1mu} {\rm{Cal/mol}}\) and enthalpy change is \({\rm{5}}\;{\rm{K}}{\rm{.Cal/mole}}\). The \({{\rm{E}}_{\rm{a}}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{B}}{\mkern 1mu} \to {\rm{A}}\) is ( in K.Cal/mole)

1 20
2 15
3 10
4 5
CHXII04:CHEMICAL KINETICS

320225 Slope of the straight line obtained by plotting \(\log _{10} \mathrm{k}\) against \(1 / \mathrm{T}\) represents what term?

1 \({\rm{ - }}{{\rm{E}}_{\rm{a}}}\)
2 \({\rm{ - 2}}{\rm{.303}}{{\rm{E}}_{\rm{a}}}{\rm{/R}}\)
3 \({\rm{ - }}{{\rm{E}}_{\rm{a}}}{\rm{/2}}{\rm{.303R}}\)
4 \({{\rm{E}}_{\rm{a}}}{\rm{/R}}\)
KCET - 2019
CHXII04:CHEMICAL KINETICS

320226 Given that the temperature coefficient for the saponification of ethyl acetate by \(\mathrm{NaOH}\) is 1.75 . The activation energy for the saponification of ethyl acetate is

1 \({\text{10}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
2 \({\text{12}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
3 \({\text{14}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
4 \({\text{16}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
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CHXII04:CHEMICAL KINETICS

320222 The slope of Arrhenius Plot \(\left( {{\rm{ln}}\,{\rm{k}}\,{\rm{vs}}\frac{{\rm{1}}}{{\rm{T}}}} \right)\) of first order reaction is \(-5 \times 10^{3} \mathrm{~K}\). The value of \(\mathrm{E}_{\mathrm{a}}\) of the reaction is. Choose the correct option for your answer. [Given \(\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\) ]

1 \(83.0 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
2 \(166 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
3 \(-83 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
4 \(41.5 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
NEET - 2021
CHXII04:CHEMICAL KINETICS

320223 The rate constant for the first order decomposition of a certain reaction is described by the equation
\(\ln \mathrm{k}\left(\mathrm{s}^{-1}\right)=14.34-\dfrac{1.25 \times 10^{4} \mathrm{~K}}{\mathrm{~T}}\). The energy of activation for this reaction is

1 \({\text{1}}.{\text{26}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
2 \({\text{4}}{\text{.29}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
3 \({\text{3}}{\text{.12}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
4 \({\text{2}}{\text{.50}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
AIIMS - 2018
CHXII04:CHEMICAL KINETICS

320224 An endothermic reaction \({\text{A}} \to {\text{B}}\) has \({{\rm{E}}_{\rm{a}}}\,\,{\rm{values}}\,\,{\rm{as}}\,\,{\rm{15}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\rm{.}}{\mkern 1mu} {\mkern 1mu} {\rm{Cal/mol}}\) and enthalpy change is \({\rm{5}}\;{\rm{K}}{\rm{.Cal/mole}}\). The \({{\rm{E}}_{\rm{a}}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{B}}{\mkern 1mu} \to {\rm{A}}\) is ( in K.Cal/mole)

1 20
2 15
3 10
4 5
CHXII04:CHEMICAL KINETICS

320225 Slope of the straight line obtained by plotting \(\log _{10} \mathrm{k}\) against \(1 / \mathrm{T}\) represents what term?

1 \({\rm{ - }}{{\rm{E}}_{\rm{a}}}\)
2 \({\rm{ - 2}}{\rm{.303}}{{\rm{E}}_{\rm{a}}}{\rm{/R}}\)
3 \({\rm{ - }}{{\rm{E}}_{\rm{a}}}{\rm{/2}}{\rm{.303R}}\)
4 \({{\rm{E}}_{\rm{a}}}{\rm{/R}}\)
KCET - 2019
CHXII04:CHEMICAL KINETICS

320226 Given that the temperature coefficient for the saponification of ethyl acetate by \(\mathrm{NaOH}\) is 1.75 . The activation energy for the saponification of ethyl acetate is

1 \({\text{10}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
2 \({\text{12}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
3 \({\text{14}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
4 \({\text{16}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
NEET DIGITAL LIBRARY
CHXII04:CHEMICAL KINETICS

320222 The slope of Arrhenius Plot \(\left( {{\rm{ln}}\,{\rm{k}}\,{\rm{vs}}\frac{{\rm{1}}}{{\rm{T}}}} \right)\) of first order reaction is \(-5 \times 10^{3} \mathrm{~K}\). The value of \(\mathrm{E}_{\mathrm{a}}\) of the reaction is. Choose the correct option for your answer. [Given \(\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\) ]

1 \(83.0 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
2 \(166 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
3 \(-83 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
4 \(41.5 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
NEET - 2021
CHXII04:CHEMICAL KINETICS

320223 The rate constant for the first order decomposition of a certain reaction is described by the equation
\(\ln \mathrm{k}\left(\mathrm{s}^{-1}\right)=14.34-\dfrac{1.25 \times 10^{4} \mathrm{~K}}{\mathrm{~T}}\). The energy of activation for this reaction is

1 \({\text{1}}.{\text{26}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
2 \({\text{4}}{\text{.29}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
3 \({\text{3}}{\text{.12}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
4 \({\text{2}}{\text{.50}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
AIIMS - 2018
CHXII04:CHEMICAL KINETICS

320224 An endothermic reaction \({\text{A}} \to {\text{B}}\) has \({{\rm{E}}_{\rm{a}}}\,\,{\rm{values}}\,\,{\rm{as}}\,\,{\rm{15}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\rm{.}}{\mkern 1mu} {\mkern 1mu} {\rm{Cal/mol}}\) and enthalpy change is \({\rm{5}}\;{\rm{K}}{\rm{.Cal/mole}}\). The \({{\rm{E}}_{\rm{a}}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{B}}{\mkern 1mu} \to {\rm{A}}\) is ( in K.Cal/mole)

1 20
2 15
3 10
4 5
CHXII04:CHEMICAL KINETICS

320225 Slope of the straight line obtained by plotting \(\log _{10} \mathrm{k}\) against \(1 / \mathrm{T}\) represents what term?

1 \({\rm{ - }}{{\rm{E}}_{\rm{a}}}\)
2 \({\rm{ - 2}}{\rm{.303}}{{\rm{E}}_{\rm{a}}}{\rm{/R}}\)
3 \({\rm{ - }}{{\rm{E}}_{\rm{a}}}{\rm{/2}}{\rm{.303R}}\)
4 \({{\rm{E}}_{\rm{a}}}{\rm{/R}}\)
KCET - 2019
CHXII04:CHEMICAL KINETICS

320226 Given that the temperature coefficient for the saponification of ethyl acetate by \(\mathrm{NaOH}\) is 1.75 . The activation energy for the saponification of ethyl acetate is

1 \({\text{10}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
2 \({\text{12}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
3 \({\text{14}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
4 \({\text{16}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
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CHXII04:CHEMICAL KINETICS

320222 The slope of Arrhenius Plot \(\left( {{\rm{ln}}\,{\rm{k}}\,{\rm{vs}}\frac{{\rm{1}}}{{\rm{T}}}} \right)\) of first order reaction is \(-5 \times 10^{3} \mathrm{~K}\). The value of \(\mathrm{E}_{\mathrm{a}}\) of the reaction is. Choose the correct option for your answer. [Given \(\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\) ]

1 \(83.0 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
2 \(166 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
3 \(-83 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
4 \(41.5 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
NEET - 2021
CHXII04:CHEMICAL KINETICS

320223 The rate constant for the first order decomposition of a certain reaction is described by the equation
\(\ln \mathrm{k}\left(\mathrm{s}^{-1}\right)=14.34-\dfrac{1.25 \times 10^{4} \mathrm{~K}}{\mathrm{~T}}\). The energy of activation for this reaction is

1 \({\text{1}}.{\text{26}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
2 \({\text{4}}{\text{.29}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
3 \({\text{3}}{\text{.12}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
4 \({\text{2}}{\text{.50}} \times {\text{1}}{{\text{0}}^{\text{4}}}{\text{cal mo}}{{\text{l}}^{{\text{ - 1}}}}\)
AIIMS - 2018
CHXII04:CHEMICAL KINETICS

320224 An endothermic reaction \({\text{A}} \to {\text{B}}\) has \({{\rm{E}}_{\rm{a}}}\,\,{\rm{values}}\,\,{\rm{as}}\,\,{\rm{15}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\rm{.}}{\mkern 1mu} {\mkern 1mu} {\rm{Cal/mol}}\) and enthalpy change is \({\rm{5}}\;{\rm{K}}{\rm{.Cal/mole}}\). The \({{\rm{E}}_{\rm{a}}}{\mkern 1mu} {\mkern 1mu} {\rm{of}}{\mkern 1mu} {\mkern 1mu} {\rm{B}}{\mkern 1mu} \to {\rm{A}}\) is ( in K.Cal/mole)

1 20
2 15
3 10
4 5
CHXII04:CHEMICAL KINETICS

320225 Slope of the straight line obtained by plotting \(\log _{10} \mathrm{k}\) against \(1 / \mathrm{T}\) represents what term?

1 \({\rm{ - }}{{\rm{E}}_{\rm{a}}}\)
2 \({\rm{ - 2}}{\rm{.303}}{{\rm{E}}_{\rm{a}}}{\rm{/R}}\)
3 \({\rm{ - }}{{\rm{E}}_{\rm{a}}}{\rm{/2}}{\rm{.303R}}\)
4 \({{\rm{E}}_{\rm{a}}}{\rm{/R}}\)
KCET - 2019
CHXII04:CHEMICAL KINETICS

320226 Given that the temperature coefficient for the saponification of ethyl acetate by \(\mathrm{NaOH}\) is 1.75 . The activation energy for the saponification of ethyl acetate is

1 \({\text{10}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
2 \({\text{12}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
3 \({\text{14}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)
4 \({\text{16}}{\text{.7k}}\,{\text{cal}}\,{\text{mo}}{{\text{l}}^{{\text{ - 1}}}}\)