LOVELY PROFESSIONAL UNIVERSITY
HOME WORK: 2
School: Department:
Name of the faculty member: Course
No: CHE101
Course Title: Chemistry
Class: Term:
Section:
Batch:
Max. Marks: 7 Date of Allotment: Date of Submission:
PART
A
Q.1
For the reaction A + B + C → products, the following initial rate data were
obtained:
|
[A] |
[B] |
[C] |
Initial
Rate
(M.s-1) |
|
0.050
|
0.050
|
0.10
|
1.1
x 10-3
|
|
0.050
|
0.10
|
0.10
|
4.4
x 10-3
|
|
0.10
|
0.050
|
0.10
|
1.1
x 10-3
|
|
0.10
|
0.050
|
0.30
|
3.3
x 10-3
|
Find the rate
law for this reaction.
Q2. For a first order reaction the following data are obtained from
an experiment by measuring the concentration as a function of time. The
reaction is of the type: A → products.
|
time
(secs.)
|
[A]
|
|
0
|
1.00
|
|
50
|
0.500
|
|
100
|
?
|
Determine the
molar concentration of A after 100 seconds have elapsed and also determine the
value of rate constant k in sec-1.
Q.3 In the reaction of potassium (K) with
methyl iodide (CH3I) to for the product KI, how orientation of these
reactant molecules play important role in product formation. Except from this
what will be the other requirements for reactant molecules to form product
according to collision theory.
PART B
Q.4 Balance the following redox equations:
a)
CN-
+ MnO4- → CNO-
+ MnO2 (in basic
solution)
b)
Cr2O72-
+ C2O42- →
Cr3+ + CO2 (in
acidic solution)
Q.5 Ca (s) + Cd2+ (aq) → Ca2+ (aq) + Cd
(s)
In the above reaction assume that initial concentration of
dissolved species are 1.0 M. Predict whether this reaction will be feasible or
not in aqueous solution at 250C.
Q.6 Discuss the advantages and disadvantages of fuel cells over
conventional power plants in producing electricity.
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