Q. 194.5( 45 Votes )

A mixture of dihy

Answer :

Let the weight of dihydrogen be 20 g and the weight of dioxygen be 80 g.

Then, the number of moles of dihydrogen:


n(H2) = 20/2 = 10 moles


The number of moles of dioxygen:


n(O2) = 80/32 = 2.5 moles


Given that,


Total pressure of the mixture, p(total) = 1 bar


Then, partial pressure of dihydrogen:




= 0.8 bar


Hence, the partial pressure of dihydrogen is 0.8 bar.


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