(a)
Interpretation:
The approximate
Set I | Set II | Set III | |||
Time, s | [A], M | Time, s | [A], M | Time, s | [A], M |
0 | 1.00 | 0 | 1.00 | 0 | 1.00 |
25 | 0.78 | 25 | 0.75 | 25 | 0.80 |
50 | 0.61 | 50 | 0.50 | 50 | 0.67 |
75 | 0.47 | 75 | 0.25 | 75 | 0.57 |
100 | 0.37 | 100 | 0.00 | 100 | 0.50 |
150 | 0.22 | 150 | 0.40 | ||
200 | 0.14 | 200 | 0.33 | ||
250 | 0.08 | 250 | 0.29 |
Concept introduction:
- Zero-order reaction- for this, rate of reaction is independent of the concentration.
And the graph of zero order reaction is-
(b)
Interpretation:
The approximate rate of reaction at t= 75 sec for first order reaction is to be determined.
Set I | Set II | Set III | |||
Time, s | [A], M | Time, s | [A], M | Time, s | [A], M |
0 | 1.00 | 0 | 1.00 | 0 | 1.00 |
25 | 0.78 | 25 | 0.75 | 25 | 0.80 |
50 | 0.61 | 50 | 0.50 | 50 | 0.67 |
75 | 0.47 | 75 | 0.25 | 75 | 0.57 |
100 | 0.37 | 100 | 0.00 | 100 | 0.50 |
150 | 0.22 | 150 | 0.40 | ||
200 | 0.14 | 200 | 0.33 | ||
250 | 0.08 | 250 | 0.29 |
Concept introduction:
- The first order reaction is the one in which the rate is directly proportional to the concentration of one of the reactant.
And half-life is
Integral rate law for first order reaction is −
and
(c)
Interpretation:
The approximate rate of reaction at t= 75 sec for second order reaction is to be determined.
Set I | Set II | Set III | |||
Time, s | [A], M | Time, s | [A], M | Time, s | [A], M |
0 | 1.00 | 0 | 1.00 | 0 | 1.00 |
25 | 0.78 | 25 | 0.75 | 25 | 0.80 |
50 | 0.61 | 50 | 0.50 | 50 | 0.67 |
75 | 0.47 | 75 | 0.25 | 75 | 0.57 |
100 | 0.37 | 100 | 0.00 | 100 | 0.50 |
150 | 0.22 | 150 | 0.40 | ||
200 | 0.14 | 200 | 0.33 | ||
250 | 0.08 | 250 | 0.29 |
Concept introduction:
- The second order reaction is the one in which the rate is directly proportional to the square of the concentration of one of the reactant.
Integral rate law for second order reaction is −
And the graph of second order reaction is-
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General Chemistry: Principles and Modern Applications (11th Edition)
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