For the reaction R rarr P, the concentra...

For the reaction `R rarr P`, the concentration of reactant changes from 0.03 M to 0.02 M in 25 minutes. Calculate the average rate of reaction rate of reaction using units of time both in minutes and seconds.

Text Solution

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Average rate `=-(Delta[R])/(Deltat)=-([R]_(2)-[R_(1)])/(t_(2)-t_(1))=-(0.02" M"-0.030" M")/(25" min")=-(-0.01" M")/(25" min")=4xx10^(-4)" M min"^(-1)`
or `=-(-0.01" M")/(25xx60s)=6.66xx10^(-6)" Ms"^(-1)`

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For the reaction R rarr P , the concentration of a reactant changes from 0.03 M to 0.02 M in 25 min. Calculate the average rate of reaction using units of time in seconds.

`6.66 xx 10^(-5) Ms^(-1)`

`6.6 xx 10^(-6) Ms^(-1)`

`5.67 xx 10^(-5)Ms^(-1)`

`7.26 xx 10^(-6)Ms^(-1)`

For a reaction R to P , the concentration of a reactant changes from 0.05 M to 0.04 M in 30 minutes. What will be average rate of reaction in minutes?

`4 xx 10^(-4) M "min"^(-1)`

`8 xx 10^(-4) "min"^(-1)`

`3.3 xx 10^(-4) M "min"^(-1)`

`2.2 xx 10^(-4) M "min"^(-1)`

Concentration of a reactant ‘A’ is changed from 0.044M to 0.032M in 25 minutes, the average rate of the reaction during this interval is

`0.0048 "mol"."lit"^(-1)."min"^(-1)`

`0.00048 mol.lit^(-1) sec^(-1)`

`4.8 xx 10^(-4) mol.lit^(-1).min^(-1)`

`0.0048 mol.lit^(-1)sec^(-1)`