JEE Main 2024 Chemistry question
The following data were obtained during the first order thermal decomposition of a gas A at constant volume: A(g) → 2B(g) + C(g)
| S.No. | Time/s | Total pressure/(atm) | |---|---|---| | 1. | 0 | 0.1 | | 2. | 115 | 0.28 |
The rate constant of the reaction is × s (nearest integer)
Answer: 2
Solution
= P₀ + 2x ⇒ x = 0.09, so = 0.01; k = (2.303/115) log(0.1/0.01) = 2 × 10⁻² s⁻¹.