Time required for completion of ionic reactions in comparison to molecular reactions is

In the following reaction,$2H_2O_2 \to 2H_2O + O_2$,the rate of formation of $O_2$ is $36 \ g \ min^{-1}$. What is the rate of disappearance of $H_2O_2$ in $mol \ min^{-1}$?

In a hydrogenation reaction at $27\,^oC$,it is observed that the hydrogen gas pressure falls from $2\,atm$ to $1.2\,atm$ in $50\,min$. Calculate the rate of disappearance of hydrogen.

Explain the average rate of reaction for a hypothetical $R \longrightarrow P$ reaction.

For the reaction $2A + 3B \to 4C$,the rate of reaction may be represented as:

In a reaction $R \to P$,the concentration $[M]$ obtained at different times $(t)$ are shown in the following table. Calculate the average rate $r_{av}$ of the reaction.

Time $t$ $(s)$	$0$	$5$	$10$	$20$	$30$
Concentration $(mol \ L^{-1})$	$160 \times 10^{-3}$	$80 \times 10^{-3}$	$40 \times 10^{-3}$	$10 \times 10^{-3}$	$3.5 \times 10^{-3}$