JEE Main 2025 Chemistry question

For the thermal decomposition of at constant volume, the following table can be formed, for the reaction mentioned below :

S.No. | Time/s | Total pressure / (atm) 1 | 0 | 0.6 2 | 100 | 'x'

x = × atm [nearest integer] Given : Rate constant for the reaction is s⁻¹.