W1-Ideal gases
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Questions and Answers

What is the relationship between volume, pressure, and temperature according to the ideal gas law?

  • Volume is inversely proportional to pressure and directly proportional to temperature
  • Volume is directly proportional to pressure and inversely proportional to temperature
  • Volume is directly proportional to both pressure and temperature (correct)
  • Volume is inversely proportional to both pressure and temperature
  • Which type of forces determine the state of matter a substance takes?

  • Hydrogen bonding
  • Intramolecular forces
  • Intermolecular forces (correct)
  • Ionic forces
  • Which type of intermolecular force is responsible for holding covalent molecules together in the forms we see around us?

  • Dipole-induced dipole forces
  • Ionic forces
  • Dipole-dipole forces (correct)
  • London dispersion forces
  • What is the value of the gas constant in the ideal gas law?

    <p>8.314 J K^-1 mol^-1</p> Signup and view all the answers

    Which equation modifies the ideal gas law to account for repulsion and attraction between gas molecules?

    <p>Van der Waals equation of state</p> Signup and view all the answers

    What does Dalton's law state about the total pressure of a gas mixture?

    <p>It is the sum of the pressures exerted by individual gases.</p> Signup and view all the answers

    What are encountered in pharmacy as volatile agents?

    <p>Anesthetics, volatile drugs, and propellants for needle-free injection technologies</p> Signup and view all the answers

    Study Notes

    Chemistry and Pharmacy: Key Concepts and Applications

    • A three-year-old girl was abducted and murdered, and despite a suspect pleading guilty, no fingerprints were found in the car, which was processed four days after the abduction.
    • Matter is classified into macroscopic states (solid, liquid, gas) and microscopic states (particle arrangement).
    • Conversions, constants, and multiplication factors are essential in chemistry, including the mole road map.
    • Gases and volatile agents are encountered in pharmacy, such as anesthetics, volatile drugs, and propellants for needle-free injection technologies.
    • The ideal gas law describes the physical properties of gas, with the gas constant having a value of 8.314 J K-1 mol-1.
    • Physical parameters like mass, volume, pressure, and temperature characterize the state of a sample, and SI units quantify each parameter.
    • The ideal gas law is used to calculate pressure exerted by a gas, considering significant figures.
    • The van der Waals equation of state modifies the ideal gas law to account for repulsion and attraction between gas molecules.
    • Dalton's law states that the total pressure of a gas mixture is the sum of the pressures exerted by individual gases.
    • Partial pressures of gas mixtures can be calculated using mole fractions and total pressure.
    • The text recommends reading "Elements of Physical Chemistry" by P. Atkins and J. de Paula for further understanding of the topic.
    • "Physicochemical Principles of Pharmacy" by A.T. Florence and D. Attwood, 4th Ed., is also suggested for additional context, available online through iCat.

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    W1-Ideal gases-Gemma.pptx

    Description

    Test your knowledge of physical chemistry concepts related to pharmacy, including states of matter, intermolecular forces, ideal and real gases, and Dalton's law for gas mixtures.

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