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Chemical Kinetics
Short Answer Type
31.
The plot of log k versus X is linear with a slope
=
-
E
a
2
.
303
R
.
What is X?
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32.
A rate constant of a reaction is 3 x 10
–4
L mol
–1
min
–1
. What is the order of the reaction?
The unit of second order rate constant is L mol–1 s–1, therefore 3 x 10
–4
L mol
–1
min
–1
represents a second order reaction.
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33.
Give one example of a reaction where order and molecularity are equal.
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34.
Give an example of a pseudo first order reaction.
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35.
Identify the order of a reaction, if the rate constant has the units: litre / moles/sec.
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36.
Write the differential rate equations for a first order reaction.
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37.
Write the first order rate equation in an exponential form.
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38.
The following graph is a plot of the rate of reaction versus concentration of the reactant. What is the order of the reaction?
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39.
The following graph is a plot of the rate of reaction versus concentration of the reactant. What is the order of reaction?
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40.
For a reaction A → B, the rate of reaction can be denoted by – dB / dt or + dA / dt. State the significance of plus and minus sign in this case?
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