1.

The decomposition of N_(2)O_(5) in carbon tetrachloride was followed by measuring the volume of O_(2) gas evolved : 2NO_(2)O_(5)(C Cl_(4)) to 2N_(2)O_(4)(C Cl_(4))+O_(2)(g). The maximum volume of O_(2) gas obtained was 100 cm^(3). In 500 minutes, 90 cm^(3) of O_(2) were evolved. The first order rate constant (in min^(-1)) for the disappearance of N_(2)O_(5) is:

Answer»

`(2.303)/(500)`
`(2.303)/(500)log""(100)/(90)`
`(2.303)/(500)log""(90)/(100)`
`(100)/(10 XX 500)`

Solution :
`k=(1)/(t)In(a)/(a-x)=(2.303)/(500)`


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