A20.0 liter flask contains a mixture of argon at 0.72 atmosphere and oxygen at 1.65 atmosphere. what is the total pressure in the flask

Total pressure in flask is 2.37 atm.

Explanation:

According to the Dalton's law of partial pressure, the total pressure of the flask would be the sum of partial pressure of the gases present in mixture.

P(total) = P1+ P2+P3+...Pn

n= number of gases present

Given data:

Pressure of argon gas = 0.72 atm

Pressure of oxygen gas = 1.65 atm

Total pressure in flask = ?

Solution:

P(total) = P (argon) + P (oxygen)

P(total) = 0.72 + 1.65

P(total) =  2.37 atm

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.