A first-order gaseous reaction has an initial pressure of 1.0 atm. After 50 s, the total pressure is 1.5 atm. What is th
For A → 2B, x = 0.5, pA = 0.5. k ≈ 0.0139 s⁻¹.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Rate of Reaction - Average and Instantaneous Rate and Rate Law