Based on the graph below, the average rate of reaction will be:
1. \(\frac{[R_{2}]-[R_{1}]}{t_{2}-t_{1}}\)
2. \(-(\frac{[R_{2}]-[R_{1}]}{t_{2}-t_{1}})\)
3. \(\frac{[R_{2}]}{t_{2}}\)
4. \(-(\frac{[R_{1}]-[R_{2}]}{t_{2}-t_{1}})\)
Match the items in Column I with Column II:
Column I | Column II |
A. Diamond to graphite conversion | 1. Short interval of time |
B. Instantaneous rate | 2. Ordinarily rate of conversion is imperceptible |
C. Average rate | 3. Long duration of time |
Codes:
A | B | C | |
1. | 2 | 1 | 3 |
2. | 1 | 2 | 3 |
3. | 3 | 2 | 1 |
4. | 1 | 3 | 2 |
Consider the following graph:
The instantaneous rate of reaction at t = 600 sec will be:
In the following reaction: xA → yB
where the -ve sign indicates the rate of disappearance of the reactant. Then, x : y equals:
1. | 1:2 | 2. | 2:1 |
3. | 3:1 | 4. | 3:10 |
A gaseous reaction A2(g) → B(g) + (g) shows increase in pressure from 100 mm to 120 mm in 5 minutes. The rate of disappearance of A2 will be :
1. | 4 mm min-1 | 2. | 8 mm min-1 |
3. | 16 mm min-1 | 4. | 2 mm min-1 |
During the formation of ammonia by Haber's process N2 + 3H2 → 2NH3, the rate of appearance of NH3 was measured as 2.5 x 10-4 mol L-1 s-1. The rate of disappearance of H2 will be:
1. 2.5 x 10-4 mol L-1 s-1
2. 1.25 x 10-4 mol L-1 s-1
3. 3.75 x 10-4 mol L-1 s-1
4. 15.00 x 10-4 mol L-1 s-1
For the reaction,
N2O5(g) → 2NO2(g) + \(\frac{1}{2}\)O2(g)
the value of the rate of disappearance of is given as . The rate of formation of is given respectively as:
1. 6.25 x 10-3 mol L-1s-1 and 6.25 x 10-3 mol L-1s-1
2. 1.25 x 10-2 mol L-1s-1 and 3.125 x 10-3 mol L-1s-1
3. 6.25 x 10-3 mol L-1s-1 and 3.125 x 10-3 mol L-1s-1
4. 1.25 x 10-2 mol L-1s-1 and 6.25 x 10-3 mol L-1s-1
The following reaction was carried out at 300 K.
2SO2(g) + O2(g) → 2SO3(g)
The rate of formation of is related to the rate of disappearance of by the following expression:
1.
2.
3.
4. None of the above.
For the reaction, \(2 A+B \rightarrow 3 C+D\)
Which of the following is an incorrect expression for the rate of reaction?
1. | \(-\frac{d[C]}{{3} d t }\) | 2. | \(-\frac{d[B]}{d t} \) |
3. | \(\frac{d[D]}{d t} \) | 4. | \(-\frac{d[A]}{2 d t}\) |