The Van der Waals Equation
19 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

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?

<p>Van der Waals equation (D)</p> Signup and view all the answers

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

<p>To account for the volume and intermolecular forces of the gas (C)</p> Signup and view all the answers

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

<p>Low temperatures and high pressures (B)</p> Signup and view all the answers

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

<p>The pressure increases (D)</p> Signup and view all the answers

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

<p>Van der Waals Equation (B)</p> Signup and view all the answers

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

<p>Adding a constant to the pressure term and subtracting a constant from the volume term (D)</p> Signup and view all the answers

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

<p>High pressures and low temperatures (D)</p> Signup and view all the answers

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

<p>Johannes Diderik van der Waals (A)</p> Signup and view all the answers

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

<p>Ideal gas law: $PV = nRT$ (C)</p> 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?

<p>van der Waals equation: $(P + rac{an^2}{V^2})(V-nb) = nRT$ (D)</p> 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?

<p>Because the attractive forces between the gas molecules increase as they are squished into a tighter space (C)</p> Signup and view all the answers

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

<p>The attraction between the gas molecules (C)</p> 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?

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

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

<p>0.0821 L-atm/mol-K (B)</p> Signup and view all the answers

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

<p>The ideal gas law does not factor in the volume of gas molecules, while the van der Waals equation does. (C)</p> Signup and view all the answers

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

<p>High pressures and densities, and low temperatures (C)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser