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Chemical Kinetics
Short Answer Type
41.
What is the rate and order of a reaction of the mechanism is
2
NO
+
H
2
→
N
2
+
H
2
O
2
(
slow
)
Following by
H
2
O
2
+
H
2
→
2
H
2
O
(fast)
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42.
Define the order of a reaction.
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43.
Define first order reaction. What are its units?
132 Views
44.
Define second order reaction? Give one example and units of K.
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45.
In some cases it is found that a large number of colliding molecules have energy more than threshold value, yet the reaction is slow. Why?
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46.
How does the value of rate constant vary with reactant concentration?
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47.
A substance with initial con-centration ‘a’ follows zero order kinetics. In how much time will the reaction go to complet-ion?
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48.
The reaction A + B → C has zero order. What is the rate equation?
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49.
What is the effect of temperature on the rate constant of reaction? How can this temperature effect on rate constant be represented quantitatively?
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50.
What is the shape between log k vs
1
T
?
What is the relationship between its slope and activation energy (Ea) ?
It is a straight line whose slope =
-
Ea
2
.
303
R
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