Solve for partial pressure.

Partial pressure of He in the mixture of He, Ar and Ne is 0.128 atm in a total volume of 3 litres.

Explanation:

given that:

Pressure of He = 0.5 atm, volume = 1.5 L, Temperature = 298 K

Pressure of Ar = 2 atm, volume = 0.5 liter, temperature = 298K

Pressure of Ne = 1 atm, volume = 1 L, Temperature = 298 K

R = 0.0821 L atm /Kmole

Final volume of the container when all the gases are mixed = 3 litres.

temp remains constant.

Total pressure on the container=?

Frpm the formula,

P =

 =

 = 0.33 atm is the total pressure on the container.

The number of moles will be calculated by using PV=nRT

He

n =

  = 32 moles

Ar

n =

   = 24.4

Ne

n=

  = 24.4

total number of moles = 80.8 moles

mole fraction of helium in the gas mixture =

mole fraction of He = 0.39 moles

Applying the relation:

partial pressure of He = total pressure x mole fraction

                                       = 0.33 x 0.39

                                        = 0.128 atm.

Partial pressure of He in the mixture is 0.128 atm.

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

the maximum mass of nh3 is nh3 in grams