A mixture of oxygen, hydrogen, and nitrogen exerts a total pressure of 378 kPa. If the partial pressures of oxygen and hydrogen are 212 kPa and 101 kPa respectively, what is the partial pressure exerted by nitrogen?

1 Answer
anor277
Sep 10, 2017

#P_(N_2)=65*kPa...........#

Explanation:

Old Dalton's law of partial pressures states that in a gaseous mixture, the partial pressure exerted by a component gas is the same as the pressure it would exert IF IT ALONE occupied the container.....

And thus....#P_"Total"=P_(N_2)+P_(O_2)+P_(H_2)#....

i.e. #P_(N_2)=# #P_"Total"-P_(O_2)-P_(H_2)#

#={378-212-101}*kPa=??*kPa#

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