TS EAMCET 04 May 2019 Shift 1 Solved Paper

The decomposition of O3 (g) follows first order kinetics and is given by:
O3 (g) → O2 (g) + O (g)
The rate constant for this reaction is 1.0 × 10−3s−1. The initial pressure of O3 (g) is 100 atm. What will be the paitial pressure (in atm) of O3,O2 , O respectively after 38.38 minutes?