1. According to the ideal gas law, a 1.029 mol sample of oxygen gas in a 1.175 L container at 265.7 K should exert a pressure of 19.09 atm. What is the percent difference between the pressure calculated using the van der Waals' equation and the ideal pressure? For O₂ gas, a = 1.360 L²atm/mol² and b = 3.18310^-2 L/mol.

2.According to the ideal gas law, a 10.68 mol sample of argon gas in a 0.8386 L container at 503.9 K should exert a pressure of 526.6 atm. What is the percent difference between the pressure calculated using the van der Waals' equation and the ideal pressure? For Ar gas, a = 1.345 L²atm/mol² and b = 3.21910^-2 L/mol.

Using Perecent Difference Equation