Agas mixture contains 0.150 mol of oxygen (o2) gas and 0.211 mol of argon (ar) gas. the total pressure of the mixture is 159 kpa. what is the partial pressure of ar in the mixture?

Partial pressure of Ar = 92.934 kPa

Partial pressure of a gas = Mole fraction × Total pressure

Mole fraction = Number of moles of a gas /Total moles of gas

Therefore;

Mole fraction of Ar = 0.211 mol/ (0.211 + 0.150)

                               = 0.5845

Total pressure = 159 kPa

Hence;

Partial pressure of Ar = 0.5845 × 159 kPa

                                    = 92.934 kPa

d.) circle motion requires a force to give it a centripetal acceleration.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.