Diffusion vs. Effusion
15 Questions
1 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 causes the strong odor in rotten eggs?

  • Hydrogen sulfide (correct)
  • Chlorine gas
  • Hydrogen peroxide
  • Sodium hypochlorite

Why would Helen smell hydrogen sulfide first?

  • It is less reactive
  • It is present in a higher concentration
  • It has a higher molecular weight
  • It has a lower molar mass (correct)

What factor primarily determines the relative diffusion rate of substances?

  • Color
  • Density
  • Temperature
  • Molar mass (correct)

Which law is used to calculate the relative velocities of substances in diffusion?

<p>Graham's law (B)</p> Signup and view all the answers

How much longer would it take for Helen to smell sodium hypochlorite compared to hydrogen sulfide?

<p>$1.48$ times longer (B)</p> Signup and view all the answers

What does Kinetic Molecular Theory assume about gas particles?

<p>They are in constant rapid motion. (D)</p> Signup and view all the answers

In diffusion, the movement of atoms or molecules occurs through what kind of path?

<p>A free path. (C)</p> Signup and view all the answers

According to Graham's Law, the rate of effusion of a gaseous substance is inversely proportional to what?

<p>The inverse square root of its molar mass. (A)</p> Signup and view all the answers

How does the kinetic energy of gas particles affect the effusion rate?

<p>Increases the effusion rate. (C)</p> Signup and view all the answers

In the context of Graham's Law, why does a helium balloon deflate over time in a room with nitrogen and oxygen?

<p>Helium particles have a lower molar mass than nitrogen and oxygen. (C)</p> Signup and view all the answers

What is the main difference between diffusion and effusion?

<p>Diffusion involves movement across a concentration gradient, while effusion involves escape through a small opening. (B)</p> Signup and view all the answers

Which factor does NOT influence the rate of diffusion?

<p>Type of gases involved (C)</p> Signup and view all the answers

In the context of the text, what is the kinetic molecular theory?

<p>A theory that matter is made of invisible moving particles in constant random motion. (D)</p> Signup and view all the answers

Why does effusion occur in gases rather than liquids?

<p>Gases have higher kinetic energy compared to liquids. (A)</p> Signup and view all the answers

What is an example of effusion provided in the text?

<p>Helium slowly escaping through a balloon's rubber barrier. (D)</p> Signup and view all the answers

More Like This

Diffusion and Osmosis Lab Flashcards
11 questions
Diffusion and Osmosis Flashcards
15 questions
Types of Diffusion - AP Human Geography
31 questions
Use Quizgecko on...
Browser
Browser