In this model:

1.The molecules obey
Thornley's
Einsteins's
Newton's
of motion.

2.The molecules move in all direction with equal probability.

3.There is no interactions between molecules

4.The molecules undergo elastic collisions with the walls.

5.The gas particles are assumed to have zero
mass
density
electrons
volume
idea

You can change the following parameters

N: Total number of molecules

P: The pressure of the system

v: The velocity of each molecules.

The width of the container (Click near the boundary and Drag the mouse)

The volume of the container is adjusted automatically according to the
above parameters.

Starting numbers are 200,50,100 since
the reset button works strangely.

The animation is suspended when you press the mouse button. It is resumed
when you release the button.

1) What happens to the volume when the number of molecules is doubled? The
volume
doubles
halves

2) What happens to the volume when the number of molecules is tripled? The
volume
triples
x9
x1/3
x1.9

3) What is the relationship between number of molecules and volume?
directly proportional
indirectly proportional

4) If the pressure of the system is doubled what is the effect on the
volume?
x2
x4
x1/2
x1/4

5) If the pressure of the system is quadrupled what is the effect on the volume?
x2
x4
x1/2
x1/4

This shows and inversely proportional relationship between pressure and volume.

6) Tick all of the following that would increase atomic velocity in this model.

heat
catalyst
bigger box

7) The ideal gas law works best on real gases with (tick all that apply)

low T
high T
low pressure
high pressure

8) Helium is probably the closest real gas to ideal because
very little attraction to other atoms
colourless
stable octet

The ideal gas equation is:

PV=nRT

P = pressure in Pa (where 1atm = 1.013x10^{5 } Pa),

T= temperature in Kelvin,

V=volume in m^{3} ,

n=number of moles

R = gas constant8.314 J/K mol

9) What is the pressure, in Pa, of 3 moles of gas at temperature 100K which has
a volume of 0.2m^{3 ? }
Pa

10) What is the temperature of 5 moles of gas at 2 atm pressure with a volume of
2m^{3 } ?
K

11) How many moles of an ideal gas are present at 500^{o} C in a 1000cm^{3}
container with pressure 0.1 atm?
mol