Question: The gas arsine AsH3 decomposes as follows 2AsH3 g 2As s

The gas arsine (AsH3) decomposes as follows:
2AsH3(g) ⇌ 2As(s) + 3H2(g)
In an experiment pure AsH3(g) was placed in an empty, rigid, sealed flask at a pressure of 392.0 torr. After 48 h the pressure in the flask was observed to be constant at 488.0 torr.
a. Calculate the equilibrium pressure of H2(g).
b. Calculate Kp for this reaction.


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  • CreatedMay 05, 2015
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