Question

The decomposition of azomethane (C2H6N2) at a certain temperature in the gas phase follows first- order kinetics. The following are some data for the reaction C, HN (g) → C H (g) +N (g). Time (min) O 30 48 75 [CHON_](M) 0.36 0.30 0.25 0.19 0.13 The value of rate constant is (1) 0.007 min-1 (2) 0.014 min-1 (3) 0.042 min-1 (4) 0.028 min-1 15 62​

Answer 1

Answer:

2.88 xx 10^(-4) sec ^(-1)

B

1.25 xx10^(-4)sec^(-1)

C

5.77xx10^(-4)sec^(-1)

D

None of these

Answer

3

Solution

k=(2.303)/(t)-log((P_(1))/(P_(1))),

<br>

t=0

{:((CH_(3))_(2)N_(2),rarr,C_(2)H_(6),+,N_(2)),(200,,0,,0),(200-x,,x,,x):}

<br> as per given

200+x=350" x=150

<br>

:.k=(2.303)/(t)log((200)/(200-150))

<br>

k=5.77xx10^(-4)sec^(-1)