Van der Waal's Equation and Real Gas Behavior
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Questions and Answers

What does the van der Waal's equation account for in real gases?

  • Volume occupied by the gas
  • Cohesive forces between gas molecules (correct)
  • Pressure exerted by the gas
  • Temperature of the gas

    • In the van der Waal's equation, what does the constant 'b' represent?

  • Temperature of the gas
  • Pressure exerted by the gas
  • Volume occupied by the gas (correct)
  • Cohesive forces

    • Why is the pressure of a real gas lower than that of an ideal gas?

  • Due to increased temperature
  • Due to cohesive forces between gas molecules (correct)
  • Due to higher number of moles present
  • Due to decreased volume

    • What happens to the volume and pressure terms in the ideal gas equation when considering non-ideal behavior?

    <p>They deviate from ideal values</p> Signup and view all the answers

    Which factor determines the amount of gas that can be dissolved in a liquid?

    <p>Pressure, temperature and nature of both gas and liquid solvent</p> Signup and view all the answers

    In a two-component system of a gas dissolved in a liquid, what determines the solubility?

    <p>Temperature and nature of both the gas and liquid solvent</p> Signup and view all the answers

    What is the mathematical expression for Boyle's law?

    <p>P1V1 = P2V2</p> Signup and view all the answers

    In the ideal gas law equation PV = nRT, what does R represent?

    <p>Gas constant</p> Signup and view all the answers

    Which gas law describes the relationship between pressure and temperature at constant volume?

    <p>Gay-Lussac's law</p> Signup and view all the answers

    If the pressure of a gas is increased while keeping volume constant, what happens to the temperature of the gas according to gas laws?

    <p>Temperature increases</p> Signup and view all the answers

    Which gas law states that the volume and number of moles of a gas are directly proportional at constant pressure and temperature?

    <p>Avogadro's law</p> Signup and view all the answers

    If the pressure of a gas is doubled while keeping the volume constant, what happens to the number of moles of the gas according to gas laws?

    <p>Number of moles remains constant</p> Signup and view all the answers

    What type of system do aerosols belong to?

    <p>Biphasic</p> Signup and view all the answers

    What is the critical factor for the expulsion of Active Pharmaceutical Ingredients (API) in aerosols?

    <p>Pressure of the propellant</p> Signup and view all the answers

    According to the ideal gas model, what is the volume of constituent particles?

    <p>Negligible</p> Signup and view all the answers

    When does a gas not follow the ideal gas law?

    <p>At low temperatures and high pressures</p> Signup and view all the answers

    What happens to gas behavior as temperature is lowered according to the text?

    <p>Departs from ideal gas behavior</p> Signup and view all the answers

    What happens to gas behavior as pressure is increased according to the text?

    <p>Departs from ideal gas behavior</p> Signup and view all the answers

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