Question
a 5.0 dm3 sample of oxygen at a pressure of 200 kPa and 2.0 dm3 sample of nitrogen at a pressure of 500 kPa are introduced into a 2.5 dm3 vessel.
what is the total pressure in the vessel?
what is the total pressure in the vessel?
Answers
DrBob222
There may be an easier way to work this problem but I would do the following:
Use PV = nRT and solve for n for oxygen.
Use PV = nRT and solve for n for nitrogen.
noxygen + nnitrogen = total n.
Then PV = nRT, substitute the new volume and solve for total P. There is no T listed in the problem but you can use any T you wish as long as the same T is used throughout.
Use PV = nRT and solve for n for oxygen.
Use PV = nRT and solve for n for nitrogen.
noxygen + nnitrogen = total n.
Then PV = nRT, substitute the new volume and solve for total P. There is no T listed in the problem but you can use any T you wish as long as the same T is used throughout.