The Total solution for NCERT class 6-12
The following data were obtainedduring the first order thermal decomposition of SO2Cl2 ata constant volume.
Experiment
Time/s−1
Total pressure/atm
1
0
0.5
2
100
0.6
The thermal decomposition of SO2Cl2 ata constant volume is represented by the following equation.
= 2.231 × 10−3 s−1
When Pt =0.65 atm,
P0 + p =0.65
⇒ p = 0.65 − P0
= 0.65 − 0.5
= 0.15 atm
Therefore, when the totalpressure is 0.65 atm, pressure of SOCl2 is
= P0 − p
= 0.5 − 0.15
= 0.35 atm
Therefore, the rate of equation,when total pressure is 0.65 atm, is given by,
Rate = k()
= (2.23 × 10−3 s−1)(0.35 atm)
= 7.8 × 10−4 atms−1