Ideal Gas Mixtures and Non-Ideal Gases Quiz
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Questions and Answers

What does the ideal gas law assume about gas molecules?

  • Their collisions are not elastic
  • They are incompressible
  • They have rigid spheres with intermolecular forces
  • They have significant volume (correct)
  • According to the kinetic theory of gases, what type of collisions occur between gas molecules?

  • Inelastic collisions with zero energy exchange
  • Elastic collisions with energy exchange (correct)
  • Irregular collisions with unpredictable outcomes
  • Rigid collisions with volume change
  • Which property does the density of a substance depend heavily on?

  • Temperature and pressure (correct)
  • Molecular weight
  • Volume occupied by a unit mole
  • Rigidity of gas molecules
  • What is the specific molar volume of a substance defined as?

    <p>Volume occupied by a unit mole of the substance</p> Signup and view all the answers

    Which assumption is NOT part of the ideal gas law, based on the text?

    <p>Significant molecular weight</p> Signup and view all the answers

    Which of the following equations represents the ideal gas law?

    <p>$PV = nRT$</p> Signup and view all the answers

    In an ideal gas mixture, which of the following is shared by all the gases?

    <p>All of the above</p> Signup and view all the answers

    Which of the following equations represents the relationship between the partial pressure of a gas ($P_A$) and its mole fraction ($y_A$) in an ideal gas mixture?

    <p>$P_A = y_A P$</p> Signup and view all the answers

    Which of the following conditions would cause a real gas to deviate from ideal behavior?

    <p>Low temperature and high pressure</p> Signup and view all the answers

    Which of the following equations is known as the van der Waals equation, used to describe the behavior of real gases?

    <p>$PV = nRT + a/V^2$</p> Signup and view all the answers

    At which of the following conditions would the ideal gas law be most accurate?

    <p>Low pressure and high temperature</p> Signup and view all the answers

    What are the two main conditions that must be satisfied for the assumptions of the kinetic theory of gases to be well satisfied?

    <p>The volume must be large and the molecules must be far apart.</p> Signup and view all the answers

    What is the relationship between the molar flow rate $\dot{n}$ and the volumetric flow rate $\dot{V}$ for an ideal gas at standard conditions?

    <p>$\dot{n} = \dot{V} / 22.415$</p> Signup and view all the answers

    What is the value of the universal gas constant $R$ in the units J/(molK)?

    <p>$8.314$</p> Signup and view all the answers

    What is the meaning of the terms $P_c$ and $T_c$ in the context of the Ideal Gas Law?

    <p>They represent the critical pressure and critical temperature, beyond which a pure substance will never condense to liquid phase.</p> Signup and view all the answers

    Which of the following statements about the Ideal Gas Law is true?

    <p>The Ideal Gas Law is valid if either the volume is large and molecules are far apart, or the pressure is very low and the temperature is high.</p> Signup and view all the answers

    Which of the following is the correct form of the Ideal Gas Law equation?

    <p>$PV = nRT$</p> Signup and view all the answers

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