The Van der Waals Equation

Which gas is considered to be hypothetical and does not take up any volume?

Real gas

Ideal gas (correct)

Van der Waals gas

Inelastic gas

What equation is a modification of the original ideal gas law and takes into consideration the molecular size and intermolecular forces of the gas?

Real gas law

Elastic gas equation

Ideal gas law

Van der Waals equation (correct)

What type of gas is characterized by its individual molecules occupying an actual volume and exhibiting intermolecular forces?

Van der Waals gas

Real gas (correct)

Ideal gas

Inelastic gas

Which equation is used to describe the behavior of real gases, taking into consideration the size of the gas molecule and the intermolecular forces?

Van der Waals equation Signup and view all the answers

What are the coefficients a and b used for in the Van der Waals equation?

To account for the volume and intermolecular forces of the gas Signup and view all the answers

Under what conditions does the behavior of a gas deviate from ideal and become a real gas?

Low temperatures and high pressures Signup and view all the answers

What happens to the pressure of a gas when the volume of the container decreases?

The pressure increases Signup and view all the answers

Which equation describes the behavior of real gases, taking into account intermolecular forces and molecular size?

Van der Waals Equation Signup and view all the answers

What changes are made to the ideal gas law in order to describe the behavior of real gases?

Adding a constant to the pressure term and subtracting a constant from the volume term Signup and view all the answers

What conditions cause real gas behavior to deviate from ideal gas behavior?

High pressures and low temperatures Signup and view all the answers

Which scientist modified the ideal gas equation to consider intermolecular forces and molecular size?

Johannes Diderik van der Waals Signup and view all the answers

Which equation is used to calculate the pressure, volume, temperature, or number of moles of an ideal gas?

Ideal gas law: $PV = nRT$ Signup and view all the answers

Which equation takes into account the relative effects of the volume of gas molecules and the attraction between those molecules?

van der Waals equation: $(P + rac{an^2}{V^2})(V-nb) = nRT$ Signup and view all the answers

Why is the pressure obtained from the van der Waals equation lower than the pressure obtained from the ideal gas equation?

Because the attractive forces between the gas molecules increase as they are squished into a tighter space Signup and view all the answers

What does the 'a' constant represent in the van der Waals equation?

The attraction between the gas molecules Signup and view all the answers

Which equation is used to account for the attractive forces between gas molecules and the volume of those molecules?

van der Waals equation (P + an^2/V^2)(V-nb) = nRT) Signup and view all the answers

What is the value of the ideal gas constant (R)?

0.0821 L-atm/mol-K Signup and view all the answers

What is the difference between the ideal gas law and the van der Waals equation?

The ideal gas law does not factor in the volume of gas molecules, while the van der Waals equation does. Signup and view all the answers

Under what conditions do real gases behave differently from ideal gases?

High pressures and densities, and low temperatures Signup and view all the answers

The Van der Waals Equation

Questions and Answers

Which gas is considered to be hypothetical and does not take up any volume?

What equation is a modification of the original ideal gas law and takes into consideration the molecular size and intermolecular forces of the gas?

What type of gas is characterized by its individual molecules occupying an actual volume and exhibiting intermolecular forces?

Which equation is used to describe the behavior of real gases, taking into consideration the size of the gas molecule and the intermolecular forces?

What are the coefficients a and b used for in the Van der Waals equation?

Under what conditions does the behavior of a gas deviate from ideal and become a real gas?

What happens to the pressure of a gas when the volume of the container decreases?

Which equation describes the behavior of real gases, taking into account intermolecular forces and molecular size?

What changes are made to the ideal gas law in order to describe the behavior of real gases?

What conditions cause real gas behavior to deviate from ideal gas behavior?

Which scientist modified the ideal gas equation to consider intermolecular forces and molecular size?

Which equation is used to calculate the pressure, volume, temperature, or number of moles of an ideal gas?

Which equation takes into account the relative effects of the volume of gas molecules and the attraction between those molecules?

Why is the pressure obtained from the van der Waals equation lower than the pressure obtained from the ideal gas equation?

What does the 'a' constant represent in the van der Waals equation?

Which equation is used to account for the attractive forces between gas molecules and the volume of those molecules?

What is the value of the ideal gas constant (R)?

What is the difference between the ideal gas law and the van der Waals equation?

Under what conditions do real gases behave differently from ideal gases?

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