Rate of the Reaction
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CHXII04:CHEMICAL KINETICS

320568 For the elementary reaction \({\rm{2S}}{{\rm{O}}_{\rm{2}}}{\rm{(}}\;{\rm{g) + }}{{\rm{O}}_{\rm{2}}}{\rm{(}}\;{\rm{g)}} \to {\rm{2S}}{{\rm{O}}_{\rm{3}}}{\rm{(}}\;{\rm{g)}}\), identify the correct among the following relations

1 \(\dfrac{-\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-\mathrm{d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
2 \(\dfrac{+1}{2} \dfrac{\mathrm{d}\left[\mathrm{SO}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
3 \(\dfrac{+\mathrm{d}\left[\mathrm{SO}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-2 \mathrm{~d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
4 \(\dfrac{+\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-\mathrm{d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
CHXII04:CHEMICAL KINETICS

320569 Assertion :
Instantaneous rate of reaction is equal to \({\text{dx / dt}}\).
Reason :
It is the rate of reaction at any particular instant of time.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII04:CHEMICAL KINETICS

320570 For the elementary reaction,

\(3 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{NH}_{3}(\mathrm{~g})\) identify the correct relation among the following relations

1 \(\dfrac{-3}{2} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
2 \(\dfrac{-2}{3} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
3 \(\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-1}{3} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
4 \(\dfrac{-\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
CHXII04:CHEMICAL KINETICS

320571 If \({\rm{2A}} \to {\rm{3B}}\), then the rate of reaction of \({\rm{ + }}\frac{{{\rm{d[B]}}}}{{{\rm{dt}}}}\) is equal to

1 \({\rm{ + 2}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
2 \({\rm{ - }}\frac{{\rm{1}}}{{\rm{3}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
3 \({\rm{ - }}\frac{{\rm{3}}}{{\rm{2}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
4 \({\rm{ - }}\frac{{\rm{2}}}{{\rm{3}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
CHXII04:CHEMICAL KINETICS

320572 For the reaction, \({\mathrm{\mathrm{H}_{2(\mathrm{~g})}+\mathrm{I}_{2(\mathrm{~g})} \rightleftharpoons 2 \mathrm{HI}_{(\mathrm{g})}}}\), the rate of disappearance of \({\mathrm{\mathrm{I}_{2}}}\) is \({\mathrm{2 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}}\). If the rate of appearance of HI is given as \({\mathrm{\mathrm{X} \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}}\), then the value of ' X ' is ____ .

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NEET DIGITAL LIBRARY
CHXII04:CHEMICAL KINETICS

320568 For the elementary reaction \({\rm{2S}}{{\rm{O}}_{\rm{2}}}{\rm{(}}\;{\rm{g) + }}{{\rm{O}}_{\rm{2}}}{\rm{(}}\;{\rm{g)}} \to {\rm{2S}}{{\rm{O}}_{\rm{3}}}{\rm{(}}\;{\rm{g)}}\), identify the correct among the following relations

1 \(\dfrac{-\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-\mathrm{d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
2 \(\dfrac{+1}{2} \dfrac{\mathrm{d}\left[\mathrm{SO}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
3 \(\dfrac{+\mathrm{d}\left[\mathrm{SO}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-2 \mathrm{~d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
4 \(\dfrac{+\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-\mathrm{d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
CHXII04:CHEMICAL KINETICS

320569 Assertion :
Instantaneous rate of reaction is equal to \({\text{dx / dt}}\).
Reason :
It is the rate of reaction at any particular instant of time.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII04:CHEMICAL KINETICS

320570 For the elementary reaction,

\(3 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{NH}_{3}(\mathrm{~g})\) identify the correct relation among the following relations

1 \(\dfrac{-3}{2} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
2 \(\dfrac{-2}{3} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
3 \(\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-1}{3} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
4 \(\dfrac{-\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
CHXII04:CHEMICAL KINETICS

320571 If \({\rm{2A}} \to {\rm{3B}}\), then the rate of reaction of \({\rm{ + }}\frac{{{\rm{d[B]}}}}{{{\rm{dt}}}}\) is equal to

1 \({\rm{ + 2}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
2 \({\rm{ - }}\frac{{\rm{1}}}{{\rm{3}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
3 \({\rm{ - }}\frac{{\rm{3}}}{{\rm{2}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
4 \({\rm{ - }}\frac{{\rm{2}}}{{\rm{3}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
CHXII04:CHEMICAL KINETICS

320572 For the reaction, \({\mathrm{\mathrm{H}_{2(\mathrm{~g})}+\mathrm{I}_{2(\mathrm{~g})} \rightleftharpoons 2 \mathrm{HI}_{(\mathrm{g})}}}\), the rate of disappearance of \({\mathrm{\mathrm{I}_{2}}}\) is \({\mathrm{2 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}}\). If the rate of appearance of HI is given as \({\mathrm{\mathrm{X} \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}}\), then the value of ' X ' is ____ .

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CHXII04:CHEMICAL KINETICS

320568 For the elementary reaction \({\rm{2S}}{{\rm{O}}_{\rm{2}}}{\rm{(}}\;{\rm{g) + }}{{\rm{O}}_{\rm{2}}}{\rm{(}}\;{\rm{g)}} \to {\rm{2S}}{{\rm{O}}_{\rm{3}}}{\rm{(}}\;{\rm{g)}}\), identify the correct among the following relations

1 \(\dfrac{-\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-\mathrm{d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
2 \(\dfrac{+1}{2} \dfrac{\mathrm{d}\left[\mathrm{SO}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
3 \(\dfrac{+\mathrm{d}\left[\mathrm{SO}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-2 \mathrm{~d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
4 \(\dfrac{+\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-\mathrm{d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
CHXII04:CHEMICAL KINETICS

320569 Assertion :
Instantaneous rate of reaction is equal to \({\text{dx / dt}}\).
Reason :
It is the rate of reaction at any particular instant of time.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII04:CHEMICAL KINETICS

320570 For the elementary reaction,

\(3 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{NH}_{3}(\mathrm{~g})\) identify the correct relation among the following relations

1 \(\dfrac{-3}{2} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
2 \(\dfrac{-2}{3} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
3 \(\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-1}{3} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
4 \(\dfrac{-\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
CHXII04:CHEMICAL KINETICS

320571 If \({\rm{2A}} \to {\rm{3B}}\), then the rate of reaction of \({\rm{ + }}\frac{{{\rm{d[B]}}}}{{{\rm{dt}}}}\) is equal to

1 \({\rm{ + 2}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
2 \({\rm{ - }}\frac{{\rm{1}}}{{\rm{3}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
3 \({\rm{ - }}\frac{{\rm{3}}}{{\rm{2}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
4 \({\rm{ - }}\frac{{\rm{2}}}{{\rm{3}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
CHXII04:CHEMICAL KINETICS

320572 For the reaction, \({\mathrm{\mathrm{H}_{2(\mathrm{~g})}+\mathrm{I}_{2(\mathrm{~g})} \rightleftharpoons 2 \mathrm{HI}_{(\mathrm{g})}}}\), the rate of disappearance of \({\mathrm{\mathrm{I}_{2}}}\) is \({\mathrm{2 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}}\). If the rate of appearance of HI is given as \({\mathrm{\mathrm{X} \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}}\), then the value of ' X ' is ____ .

1 1
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CHXII04:CHEMICAL KINETICS

320568 For the elementary reaction \({\rm{2S}}{{\rm{O}}_{\rm{2}}}{\rm{(}}\;{\rm{g) + }}{{\rm{O}}_{\rm{2}}}{\rm{(}}\;{\rm{g)}} \to {\rm{2S}}{{\rm{O}}_{\rm{3}}}{\rm{(}}\;{\rm{g)}}\), identify the correct among the following relations

1 \(\dfrac{-\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-\mathrm{d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
2 \(\dfrac{+1}{2} \dfrac{\mathrm{d}\left[\mathrm{SO}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
3 \(\dfrac{+\mathrm{d}\left[\mathrm{SO}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-2 \mathrm{~d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
4 \(\dfrac{+\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-\mathrm{d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
CHXII04:CHEMICAL KINETICS

320569 Assertion :
Instantaneous rate of reaction is equal to \({\text{dx / dt}}\).
Reason :
It is the rate of reaction at any particular instant of time.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII04:CHEMICAL KINETICS

320570 For the elementary reaction,

\(3 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{NH}_{3}(\mathrm{~g})\) identify the correct relation among the following relations

1 \(\dfrac{-3}{2} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
2 \(\dfrac{-2}{3} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
3 \(\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-1}{3} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
4 \(\dfrac{-\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
CHXII04:CHEMICAL KINETICS

320571 If \({\rm{2A}} \to {\rm{3B}}\), then the rate of reaction of \({\rm{ + }}\frac{{{\rm{d[B]}}}}{{{\rm{dt}}}}\) is equal to

1 \({\rm{ + 2}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
2 \({\rm{ - }}\frac{{\rm{1}}}{{\rm{3}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
3 \({\rm{ - }}\frac{{\rm{3}}}{{\rm{2}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
4 \({\rm{ - }}\frac{{\rm{2}}}{{\rm{3}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
CHXII04:CHEMICAL KINETICS

320572 For the reaction, \({\mathrm{\mathrm{H}_{2(\mathrm{~g})}+\mathrm{I}_{2(\mathrm{~g})} \rightleftharpoons 2 \mathrm{HI}_{(\mathrm{g})}}}\), the rate of disappearance of \({\mathrm{\mathrm{I}_{2}}}\) is \({\mathrm{2 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}}\). If the rate of appearance of HI is given as \({\mathrm{\mathrm{X} \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}}\), then the value of ' X ' is ____ .

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NEET DIGITAL LIBRARY
CHXII04:CHEMICAL KINETICS

320568 For the elementary reaction \({\rm{2S}}{{\rm{O}}_{\rm{2}}}{\rm{(}}\;{\rm{g) + }}{{\rm{O}}_{\rm{2}}}{\rm{(}}\;{\rm{g)}} \to {\rm{2S}}{{\rm{O}}_{\rm{3}}}{\rm{(}}\;{\rm{g)}}\), identify the correct among the following relations

1 \(\dfrac{-\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-\mathrm{d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
2 \(\dfrac{+1}{2} \dfrac{\mathrm{d}\left[\mathrm{SO}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
3 \(\dfrac{+\mathrm{d}\left[\mathrm{SO}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-2 \mathrm{~d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
4 \(\dfrac{+\mathrm{d}\left[\mathrm{SO}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-\mathrm{d}\left[\mathrm{O}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
CHXII04:CHEMICAL KINETICS

320569 Assertion :
Instantaneous rate of reaction is equal to \({\text{dx / dt}}\).
Reason :
It is the rate of reaction at any particular instant of time.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII04:CHEMICAL KINETICS

320570 For the elementary reaction,

\(3 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{N}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{NH}_{3}(\mathrm{~g})\) identify the correct relation among the following relations

1 \(\dfrac{-3}{2} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
2 \(\dfrac{-2}{3} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
3 \(\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{-1}{3} \dfrac{\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}\)
4 \(\dfrac{-\mathrm{d}\left[\mathrm{H}_{2}(\mathrm{~g})\right]}{\mathrm{dt}}=\dfrac{\mathrm{d}\left[\mathrm{NH}_{3}(\mathrm{~g})\right]}{\mathrm{dt}}\)
CHXII04:CHEMICAL KINETICS

320571 If \({\rm{2A}} \to {\rm{3B}}\), then the rate of reaction of \({\rm{ + }}\frac{{{\rm{d[B]}}}}{{{\rm{dt}}}}\) is equal to

1 \({\rm{ + 2}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
2 \({\rm{ - }}\frac{{\rm{1}}}{{\rm{3}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
3 \({\rm{ - }}\frac{{\rm{3}}}{{\rm{2}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
4 \({\rm{ - }}\frac{{\rm{2}}}{{\rm{3}}}\frac{{{\rm{d[A]}}}}{{{\rm{dt}}}}\)
CHXII04:CHEMICAL KINETICS

320572 For the reaction, \({\mathrm{\mathrm{H}_{2(\mathrm{~g})}+\mathrm{I}_{2(\mathrm{~g})} \rightleftharpoons 2 \mathrm{HI}_{(\mathrm{g})}}}\), the rate of disappearance of \({\mathrm{\mathrm{I}_{2}}}\) is \({\mathrm{2 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}}\). If the rate of appearance of HI is given as \({\mathrm{\mathrm{X} \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}}}\), then the value of ' X ' is ____ .

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