28. Pand Q react according to the equation P+ 20 PQ.. The reaction is zero order with respect toP and second order with to Q. Which one ci the following suggestions would be a possible mechanism for the reaction? A) PIQ PO. PQ +Qfe PO, B) P+Q tast PQ. PQ + Q law → PO, slow C) Q+0 → Q2, Q +P →PQ, D) Q+Q P+0,lut PO,
28. Pand Q react according to the equation P+ 20 PQ.. The reaction is zero order with respect toP and second order with to Q. Which one ci the following suggestions would be a possible mechanism for the reaction? A) PIQ PO. PQ +Qfe PO, B) P+Q tast PQ. PQ + Q law → PO, slow C) Q+0 → Q2, Q +P →PQ, D) Q+Q P+0,lut PO,
Chemistry: Principles and Reactions
8th Edition
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Author:William L. Masterton, Cecile N. Hurley
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Chapter11: Rate Of Reaction
Section: Chapter Questions
Problem 35QAP: Azomethane decomposes into nitrogen and ethane at high temperatures according to the following...
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Answer Q28, 29 & 30
Transcribed Image Text:24. For the reaction 2NO(g)+O.(g) 2NO (g).
the rate = KINO (0)
Which of the follawing graphs represent the
varialion of rate of repcrion with (NO)
26. From the graph, what is the time taken for
the concentration of Q to go from 0.3 moldm
to 0.15 moldm3
A) 30
B) 25
C) 20
Đ) 21
27. What is the rate of the reaction at 20 seconds
0.245-0.115
A)
0.25-0.115
B)
30
20
0.25-0.115
C)
0.115-025
D)
30
INO
INOJ
10
28. Pand Q react according to the equation
PQ.
The reaction is zero order with respect to P
and second order with to Q. Which one of
the following suggestions would be a
possible mechanism for the reaction?
1B
P+ 2Q
P+Q PO.
PQ + Q
fot PQ,
A)
INO)
B) P+Q ft PQ.
PQ + Q
la, PO
INO)
fat, Q2,
Q +P
PO
25
C)
The data below is for the kinetic study of the
reaccion A + B - C + D
D) Q+Q4u 0,
P+Q
lo PO
Concentration
Time/10'S
29. The conversion of cyclopropane to propene
is first order reaction with a half-life of 17
minutes
of Almoldm
0.58
4
0.40
8
0.28
12
CH
0.20
16
0.14
20
HC
- CH,
CH,CH = CH,.
From the data, the half-life for the reaction is;
A) 200
C) 400
Questions 26 lo 27 concerm the graph below which
shows the change in concentration of Q with time
B) 800
D) 8
The time required for 42g of cyclopropane
to be reduced to 2.625g is;
A) 17 x 3 minutes
B) 17 x 60 x 4 seconds
C) %minutes
D) 17 minutes.
for the reaction Q +B
0.4
30. The reaction
SO (aq) + 21 (aq) - 2S0 (aq) + L(aq)
could be used to study the rate of a chemical
reaction.
Give two methods that could be used to
follow up the rate of the reaction.
0.3
02
A) Colorimetry and dilatometry
B) Colorimetry and titrimetry
C) Titrimetry and measurment of gas
D) Titrimetry and calorimetric.
20
30
40
Tune/ser.
60
70
80
90
162
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