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13 solutions

Van der Waals Equation

Q. Hydrogen gas always exhibits a positive deviation from ideality. Explain what is a positive deviation from ideality, and why hydrogen gas would exhibit this deviation as opposed to a negative deviation.

Solved • Dec 4, 2019

Van der Waals Equation

Q. The values below represent the van der Waals parameter a for CO2, CH3CN, Ne and CH4.  i. 17.58     ii. 3.392     iii. 2.253     iv. 0.2107. Keeping in mind the factors affecting the magnitude of this parameter, what do you expect to be the value of a for CH3CN? Not enough information is provided 0.2107 17.58 L2atm/mol 2.253 L2atm/mol 3.392 L2atm/mol

Solved • Nov 21, 2019

Van der Waals Equation

Q. 15.0 moles of gas are in a 4.00 L tank at 21.9 °C. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a = 2.300 L^2 . atm/mol^2 and b = 0.0430 L/mol.

Solved • Nov 14, 2019

Van der Waals Equation

Q. In general, which of the following gases would you expect to behave the least ideally? a) N2 b) CO c) H2

Solved • Nov 14, 2019

Van der Waals Equation

Q. In general, which of the following gases would you expect to behave the most ideally? a) N2 b) CO c) H2

Solved • Nov 14, 2019

Van der Waals Equation

Q. If 1.00 mol of argon is placed in a 0.500-L container at 23.0 °C, what is the difference between the ideal pressure (as predicted by the ideal gas law) and the real pressure (as predicted by the van der Waals equation)? For argon, a = 1.345 (L^2 . atm)/ mol^2 and b = 0.03219 L/mol. Enter the pressure difference in atmosphere using two significant figures.

Solved • Nov 14, 2019

Van der Waals Equation

Q. Van der Waal’s constants for carbon dioxide gas (CO2) are a = 3.59 (L2atm)/(mol2) and b = 0.0427 L/mol. What is the pressure (in atm) exerted by 5.40 g of carbon dioxide gas at 50.0°C in a 1.00 L container? Group of answer choices 2.85 0.34 4.04 3.22 5.16

Solved • Oct 31, 2019