Question

10 x 500
55. The decomposition of azo methane, at certain temperature
according to the equation (CH), N, ™C,H, +N, is a
first order reaction.
After 40 minutes from the start, the total pressure developed
in found to be 350 mm Hg in place of initial pressure 200
mm Hg of azo methane. The value of rate constant kis :
a) 2.88x10-4 sec1
b) 1.25x10 4 se
C) 5.77x10-4 sec-
d) None of these
sec​

Answer 1

Answer:

Explanation:

2.88×10-4sec-1

1.25×10-4sec-1

5.77×10-4sec-1

None of these

Answer :

3

Solution :

k=

2.303

t

 

-log(

P1

P1

 

),

t=0  (CH3)2N2 → C2H6 + N2 200  0  0 200-x  x  x  

as per given 200+x=350x=150

∴k=

2.303

t

 

log(

200

200-150

 

)

k=5.77×10-4sec-1