The decomposition of `N_(2)O` in carbon tetrachloride was followed bymesuring the volume of `O_(2)` gas evolved : `2N_(2)O_(5)("CCL"_(4))to2N_(2)O_(4)("CC"L_(4))+O_(2)(g)` . The maximum volume of `O_(2)` gas obtained was 100 `cm^(3)`. In 500 minutes, 90 cm of `O_(2)` were evolved. The first order rate constant (in `min^(-1)` for the dissaperance of `N_(2)O` is :
A. `(2.303)/(500)`
B. `(2.303)/(500)"log"(100)/(90)`
C. `(2.303)/(500)"log"(90)/(100)`
D. `(100)/(10xx500)`
