Determine the total pressure of gas mixture the contains oxygen, nitrogen, and helium if the partial pressures of the gases are as follows: PO2=0.197 atm, PN2= 0.461 atm PHe= 0.264

0.922 atm is the total pressure of gas mixture that contains oxygen, nitrogen and helium gases.

Explanation:

Data given:

partial pressure of the oxygen p = 0.197 atm

partial pressure of the nitrogen gas p = 0.461 atm

partial pressure of the helium gas pHe = 0.264

total pressure P in the gas mixture= ?

We know that individual gases exert pressure on the mixture of gases independently. From Dalton's law of pressure it is said that sum of partial pressure of all the gases in the mixture equals its total pressure. So,

Ptotal = p +  p + pHe

putting the values in the mixture:

Ptotal = 0.197 + 0.461+ 0.264

Ptotal = 0.922 atm

Total pressure is 0.922 atm.

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.