The following data were obtained during the first order thermal decomposition of a gas A at constant volume:

| S. No. | Time / s | Total pressure / atm |
|:---:|:---:|:---:|
| 1 | 0 | 0.1 |
| 2 | 11

Question

The following data were obtained during the first order thermal decomposition of a gas A at constant volume:

| S. No. | Time / s | Total pressure / atm |
|:---:|:---:|:---:|
| 1 | 0 | 0.1 |
| 2 | 115 | 0.28 |

The rate constant of the reaction is  (nearest integer)

Canvas Classes · Accepted Answer

Let initial pressure of A = .

At time : if  atm of A decomposes:
- 
- , 
- Total

At :

For first order:

Answer: 2

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