The decomposition reaction 2 hi(g) → h2(g) + 12(g), is second order and has a rate constant equal to 1.6 x 10m's at 700 °c. if the initial concentration of hi in the container is 3.4 x 10-m, how many minutes will it take for the concentration to be reduced to 8.0 x 104 m?

Answer : The time taken by the reaction is 12714.46 minutes.

Explanation :

The expression used for second order kinetics is:

where,

k = rate constant =

t = time = ?

= final concentration =

= initial concentration =

Now put all the given values in the above expression, we get:

     (1 min = 60 s)

Therefore, the time taken by the reaction is 12714.46 minutes.

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