Dinitrogen pentoxide decomposes to NO_(2) and O_(2) following first order kinetics N_(2)O_(5)(g) rarr 2NO_(2)+O_(2)(g) 0.2 mole of N_(2)O_(5) was taken in 2L vessel and heated at 200K. The concentrated of N_(2)O_(5) is measured at different intervals . Following graphs A and B were obtained from the data. Slope of straight line in graph 'A' is -1 .2 xx 10^(2)sec^(-1) . What is half life of the reaction ?

Dinitrogen pentoxide decomposes to NO_(2) and O_(2) following first or

1.	Dinitrogen pentoxide decomposes to NO_(2) and O_(2) following first order kinetics N_(2)O_(5)(g) rarr 2NO_(2)+O_(2)(g) 0.2 mole of N_(2)O_(5) was taken in 2L vessel and heated at 200K. The concentrated of N_(2)O_(5) is measured at different intervals . Following graphs A and B were obtained from the data. Slope of straight line in graph 'A' is -1 .2 xx 10^(2)sec^(-1) . What is half life of the reaction ?
Answer» `2.5 XX 10^(-2) s ` `2.5 xx 10^(-3)` `12.5 xx 10^(-4)` `2.5 xx 10^(-3) m` ANSWER :B