A student has studied the decomposition of a gas AB3 at 25°C. He obtained the following data: | p\,(mm\,Hg) | Relative…
Chemical Kinetics · Class 12 · JEE Main Previous Year Question
A student has studied the decomposition of a gas at . He obtained the following data:
| | Relative | |:---:|:---:| | 50 | 4 | | 100 | 2 | | 200 | 1 | | 400 | 0.5 |
The order of the reaction is
- a
0.5
- b✓
2
- c
1
- d
0 (zero)
2
For an th order reaction:
From the data: when pressure doubles (50→100), halves (4→2). So , meaning .
Verification: 100→200 (×2): goes 2→1 (÷2) ✓; 200→400 (×2): goes 1→0.5 (÷2) ✓
Answer: Option (2) — 2 (second order)
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