JEE Main 2024 Chemistry question
Consider the following data for the given reaction 2 HI(g) → H₂(g) + I₂(g)
| Experiment | 1 | 2 | 3 | |---|---|---|---| | HI (mol L⁻¹) | 0.005 | 0.01 | 0.02 | | Rate (mol L⁻¹s⁻¹) | 7.5 × 10⁻⁴ | 3.0 × 10⁻³ | 1.2 × 10⁻² |
The order of the reaction is .
Answer: 2
Solution
Comparing experiments 2 and 3: r₃/r₂ = 4 = (0.02/0., so x = 2.