Use the van der Waals equation of state to calculate the pressure of 3.80 mol of NH 3 at 465 K in a 5.20 L vessel. Use this list of van der Waals constants.

Question

P= ?atm

Use the ideal gas equation to calculate the pressure under the same conditions.

P=?atm

Answer 1

Do you have the a and b for NH3 of the van der Waals equation? It cannot be solved otherwise.

You can do the ideal gas part with the information you have now. PV=nRT, using R = 0.0821 Latm/molK.