Which of the following is not a correct statement ?

Options

A. Most chemical reactions become slower as they proceed
B. The rate during a measured time interval is called the average rate
C. The rate at any one istant during the interval is called instantanteous rate
D. The average rateand the instantantaneous rate are never equal

Answer

D

Explanation

Find the pressure at the start and finish of this interval.
At `2000sec` .
Thus, `p_(tau)=0.39atm=(0.29+p)atm`
Thus, `P=0.10atm=P_(O_(2))`
The rate of appearance of `O_(2)` is