Van der Waals Gases
Under what conditions of volume does a van der Waals gas behave
like an ideal gas? Use the van der Waals equation of state to
justify your answer.
Use the van der Waals equation and the ideal gas equation to
calculate the volume of 1.000 mol of neon at a pressure of 500.0
bar and a temperature of 355.0 K. (Hint: One way to solve the van
der Waals equation for V is to use successive approximations. Use
the ideal gas law to get a preliminary estimate for V
V in ideal gas
V in van der waal gas
Use both the van der Waals and the Redlich-Kwong equations to
calculate the molar volume of CO at 200K and 1000bar. Compare your
result to the result you would get using the ideal gas equation.
The experimental value is 0.04009 L-mol-1
Please explain each step.
In the van der Waals model of a gas, as compared to an ideal
gas,
a. Intermolecular forces decrease the pressure, but
finite molecular volume increases it
b. Both intermolecular forces and finite molecular
volume increase the pressure
c. Both intermolecular forces and finite molecular
volume decrease the pressure
d. Intermolecular forces increase the pressure, but
finite molecular volume decreases it
At high pressures, real gases do not behave ideally. (a) Use the
van der Waals equation and data in the text to calculate the
pressure exerted by 29.0 g H2 at 20 degree C in a 1.00 L container.
(b) Repeat the calculation assuming that the gas behaves like an
Ideal gas.
H2O
5.537
5.465
0.0305
Use the van der Waals equation of state to calculate the
pressure of 3.00 mol of H2O at 463 K in a 3.60 L vessel. Van der
Waals constants can be found here.Use the ideal gas equation to
calculate the pressure under the same conditions. Use Atm
For Van Der Waals equation
(P + a/V2)(V - b) =
nRT
How can you find the values of
"a" and "b" using an experiment? Please explain the method of the
experiment too