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Calcualte the rate at each time interval & average rate for the reaction.

 2H2O(g) ↔ 2H2(g)  +  O2(g)

The concentration of water was measured at various times and the following data was obtained:

Time (s)

[H2O] (mol/L)

0.0

0.0500

2.0

0.0448

6.0

0.0300

8.0

0.0249

10.0

0.0209

20.0

0.0088

Compute the rate of each time interval, and then find out the average rate for the reaction in terms of [H2O].

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