Properties Of Gases

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    As the temperature of a gas increases, the volume of a gas ___________.

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About This Quiz

Explore the fundamental properties of gases through this engaging quiz. Topics covered include the effects of temperature and pressure on gas volume, the kinetic molecular theory, and understanding pressure as a force per unit area. This quiz is ideal for students seeking to deepen their knowledge of gas behaviors in physical chemistry.

Properties Of Gases - Quiz

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  • 2. 

    If the pressure on a gas doubles, the volume of the gas will....

    • Double

    • Half

    • Not be effected

    • Quadruple

    Correct Answer
    A. Half
    Explanation
    When the pressure on a gas doubles, according to Boyle's Law, the volume of the gas will decrease by half. This is because as the pressure increases, the gas molecules are compressed closer together, resulting in a decrease in volume.

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  • 3. 

    If the temperature of the gas is doubled, the volume of the gas will....

    • Decrease by a factor of 2

    • Decrease by a factor of 1/2

    • Increase by a factor of 2

    • Increase by a factor of 1/2

    Correct Answer
    A. Increase by a factor of 2
    Explanation
    When the temperature of a gas is doubled, according to Charles's Law, the volume of the gas will also double. This is because as the gas molecules gain more energy from the increase in temperature, they move faster and collide with the container walls more frequently, causing the volume to increase. Therefore, the correct answer is that the volume of the gas will increase by a factor of 2.

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  • 4. 

    The force per unit are is known as the ___________.

    Correct Answer
    pressure
    Explanation
    Pressure is defined as the force per unit area. It is a measure of the amount of force applied to a given area. When a force is applied to a surface, the pressure is the force distributed over that surface. It is calculated by dividing the force applied by the area over which it is applied. Therefore, pressure is the correct answer to the given question.

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  • 5. 

    As the pressure increases on a gas, the volume of the gas ___________. 

    Correct Answer
    decreases
    Explanation
    When the pressure on a gas increases, the gas molecules are forced closer together. This reduces the space between the molecules, resulting in a decrease in volume. Therefore, as the pressure increases, the volume of the gas decreases.

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  • 6. 

    At absolute zero, particles of a gas _______________. 

    Correct Answer
    stop moving
    Explanation
    Absolute zero, or 0 K, means there is no kinetic energy, or movement of molecules.

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  • 7. 

    At Standard Temperature and Pressure (STP), the pressure is ________ atmosphere.

    Correct Answer
    1
    Explanation
    STP is a standardized set of conditions for measuring and comparing the properties of gases. The temperature at STP is defined as 0 degrees Celsius (273.15 Kelvin), and the pressure is set at 1 atmosphere (101.325 kPa). These conditions allow for consistent data comparison and reproducibility in scientific experiments.

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  • 8. 

    The kinetic molecular theory states that (choose all that apply)....

    • All molecules of a substance stay in constant motion

    • All atoms or molecules of gases have no inter-molecular attractions

    • Gases will only take up a certain volume, and then stop diffusing

    • Gases have no set volume

    • Collisions between molecules are completely elastic (no energy is lost)

    • Gas molecules do not move

    Correct Answer(s)
    A. All molecules of a substance stay in constant motion
    A. All atoms or molecules of gases have no inter-molecular attractions
    A. Gases have no set volume
    A. Collisions between molecules are completely elastic (no energy is lost)
    Explanation
    According to the kinetic molecular theory:
    All molecules of a substance stay in constant motion: This theory posits that gas molecules are always moving.
    All atoms or molecules of a gas have no intermolecular attractions: Gas particles are assumed to move independently without attractive forces between them.
    Collisions between molecules are completely elastic (no energy is lost): When gas molecules collide, they do so without losing energy, meaning the total kinetic energy remains constant.
    Gases have no set volume: Gases expand to fill the volume of their container, meaning they do not have a fixed volume.

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  • 9. 

    The temperature at STP is __________ Celsius. 

    Correct Answer(s)
    0
    Explanation
    At Standard Temperature and Pressure (STP), the temperature is defined as 0 degrees Celsius (273.15 Kelvin) and the pressure is 1 atmosphere (101.325 kPa). STP is a reference point used in various scientific contexts, particularly in chemistry and physics, to allow for consistent conditions when comparing different sets of data or conducting experiments.

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  • 10. 

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  • Jul 09, 2024
    Quiz Edited by
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  • Sep 18, 2016
    Quiz Created by
    Maria_owens
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