Quastions 31-34 The rgaction between two species C and D in the gaseous phase was investigated and the following data collected. Questions 37 - 39 Given the reaction P+O C From kinetic studies, the following data was obtained Expt No. [C]moldm [D]moldm Initial Expt No. Conc, of P Conc, of Q Rate of reaction imoldm S Rate moldm S moldm moldm 1 0.15 0.15 1. 3.6 (i) (i) (il) 0.5 0.5 1.0 0.30 0.15 0.5 0.15 0.30 1.0 7.2 0.5 3.6 Deduce the: 31. order of the reaction with respect to (C) A) 0 Give the partial order of the reaction with B) 1 C) 2 D) 4 respect to 37. P. 32. order of the reaction with respect to (D] A) 0 B) 1 C) 2 D) 3 A) 1 B) 2 C) 4 D) 0 38. Q: D) 2 33. rate expression of the reaction A) Rate = K[C [D] B) Rate = K[C) [DF C) Rate = K[CF DP D) Rate = K[CJ" [D] A) 1 B) 4 C) 0 39. The rate expression for the reaction is A) Rate = K(PP B) Rate = K[P) C) Rate = K[P) D) Rate = K[P[Q) 34. overall order of the reaction B) 2 C) 3 A) 1 D) 4 Question 40 - 42 The data below was obtained at a certain Questions 35 and 36 Mangesium reacts with dilute hydrochloric acid temperature for the kinetic study of a reaction according to the equation Mg(s) + 211CI(aq) between two substances R and S. H.(g) + MgCl (aq) Expt No. Initial Initial concentrations in moldm 35. Suggest two suitable methods by which the rate of this reaction may be determined A) volume of gas evolved and colorimetry B) pressure of gas evolved and dilatometry C) titrimetry and colorimetry D) titrimotry and volume of gas evolved. rate of reaction moldm S R. 0.25 050 0.25 0.25 1.0x10 4.0x10 8.0x10 3 0.50 0.50 Deduce the order of the reaction with respect to: 36. Two factors that would affect the rate of this reaction are; 40. R: A) 2 B) 1 C) 4 D) 0 A) concentration and catalyst B) surface area of Mg and catalyst. C) concentration and surface area of Mg D) temperature and pressure of HCI. 41. S: A) 2 B) 4 C) 1 D) 3 42. How would the rate constant for the reaction change if the reaction occured at a lower temperature? A) rate constant will be increased B) rate constant will remain the sarme C) rate constant will be decieased D) none of the above.

Quastions 31-34 The rgaction between two species C and D in the gaseous phase was investigated and the following data collected. Questions 37 - 39 Given the reaction P+O C From kinetic studies, the following data was obtained Expt No. [C]moldm [D]moldm Initial Expt No. Conc, of P Conc, of Q Rate of reaction imoldm S Rate moldm S moldm moldm 1 0.15 0.15 1. 3.6 (i) (i) (il) 0.5 0.5 1.0 0.30 0.15 0.5 0.15 0.30 1.0 7.2 0.5 3.6 Deduce the: 31. order of the reaction with respect to (C) A) 0 Give the partial order of the reaction with B) 1 C) 2 D) 4 respect to 37. P. 32. order of the reaction with respect to (D] A) 0 B) 1 C) 2 D) 3 A) 1 B) 2 C) 4 D) 0 38. Q: D) 2 33. rate expression of the reaction A) Rate = K[C [D] B) Rate = K[C) [DF C) Rate = K[CF DP D) Rate = K[CJ" [D] A) 1 B) 4 C) 0 39. The rate expression for the reaction is A) Rate = K(PP B) Rate = K[P) C) Rate = K[P) D) Rate = K[P[Q) 34. overall order of the reaction B) 2 C) 3 A) 1 D) 4 Question 40 - 42 The data below was obtained at a certain Questions 35 and 36 Mangesium reacts with dilute hydrochloric acid temperature for the kinetic study of a reaction according to the equation Mg(s) + 211CI(aq) between two substances R and S. H.(g) + MgCl (aq) Expt No. Initial Initial concentrations in moldm 35. Suggest two suitable methods by which the rate of this reaction may be determined A) volume of gas evolved and colorimetry B) pressure of gas evolved and dilatometry C) titrimetry and colorimetry D) titrimotry and volume of gas evolved. rate of reaction moldm S R. 0.25 050 0.25 0.25 1.0x10 4.0x10 8.0x10 3 0.50 0.50 Deduce the order of the reaction with respect to: 36. Two factors that would affect the rate of this reaction are; 40. R: A) 2 B) 1 C) 4 D) 0 A) concentration and catalyst B) surface area of Mg and catalyst. C) concentration and surface area of Mg D) temperature and pressure of HCI. 41. S: A) 2 B) 4 C) 1 D) 3 42. How would the rate constant for the reaction change if the reaction occured at a lower temperature? A) rate constant will be increased B) rate constant will remain the sarme C) rate constant will be decieased D) none of the above.

Chemistry

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Answer Q40, 41 & 42

Questions 37 - 39
Given the reaction P +O C.
From kinetic studies, the following dala was
obtained
Quastions 31- 34
The reaction between two species C and D in the
gaseous phase was investigated and the
following data collected.
Expt No. [C]moldm [D]moldm Initial
Expt No. Conc, of P Conc. of Q Rate of
moldm moldm
Rate
reaction
moldm S
0.15
moldm s
0,15
1.
0.5
0,5
1.0
0,30
0.15
(i)
0.5
3.6
4.
7.2
(i)
(ili)
0.15
0.30
1.0
0.5
3.6
Deduce the:
31 order of the reaction with respect to [CI
Give the partial order of the reaction with
respect to
37. P.
A) O
A) 0
B) 1 C) 2
D) 4
29 order of the reaction with respect to iDI
B) 1 C) 2
D) 3
A) 1
B) 2
C) 4
D) 0
38. Q:
A) 1
B) 4 C) 0
D) 2
33. rate expression of the reaction
A) Rate = K[Cj° [D]
B) Rate = K[C) [D
C) Rate = K[CJ [DP
D) Rate = K[Cj (D]
39. The rate expression for the reaction is
A) Rate = K[PP
B) Rate = K[P]
C) Rate = K[PI
D) Rate = K[P[Q]
34. overall order of the reaction
B) 2
A) 1
C) 3
D) 4
Question 40 - 42
Questions 35 and 36
The data below was obtained at a certain
Mangesium reacts with dilute hydrochloric acid
temperature for the kinetic study of a reaction
between two substances R and S.
according to the equation
Mg(s) + 21HCI(aq)
H.(g) + MgCl, (aq)
Expt No. Initial
Initial
35. Suggest two suitable methods by which the
rate of this reaction may be determined
A) volume of gas evolved and colorimetry
B) pressure of gas evolved and dilatometry
C) titrimetry and colorimetry
D) titrimetry and volune of gas evolved.
concentrations
rate of reaction
in moldm
moldm s
R
0.25
0 50
1.0x10
4.0x10
0.25
2
0.25
0.50
3.
0.50
8.0x102
Deduce the order of the reaction with respect to:
36. Two factors that would affect the rate of this
reaction are;
40. R: A) 2 B) 1 C) 4 D) 0
A) concentration and catalyst
B) surface area of Mg and catalyst.
C) concentration and surface area of Mg
D) temperature and pressure of HCI
41. S: A) 2 B) 4 C) 1 D) 3
42. How would the rate constant for the reaction
change if the reaction occured at a lower
temperature?
A) rate constant will be increased
B) rate constant will remain the sarme
C) rate constant will be decieased
D) none of the above.
163

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9781305957404

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Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

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