Chemistry, Science

10th -

12thgrade

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Chemistry Unit 6 practice Quiz

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  • 1. Multiple Choice
    2 minutes
    1 pt

    At the same temperature and pressure, 1.0 liter

    of CO(g) and 1.0 liter of CO2(g) have

    different volumes and a different number

    of molecules

    equal masses and the same number of

    molecules

    equal volumes and the same number of

    molecules

    different masses and a different number of

    molecules

  • 2. Multiple Choice
    2 minutes
    1 pt

    A 220.0-mL sample of helium gas is in a

    cylinder with a movable piston at 105 kPa and

    275 K. The piston is pushed in until the sample

    has a volume of 95.0 mL. The new temperature

    of the gas is 310. K. What is the new pressure

    of the sample?

    51.1 kPa

    216 kPa

    243 kPa

    274 kPa

  • 3. Multiple Choice
    2 minutes
    1 pt

    A sample of gas confined in a cylinder with a

    movable piston is kept at constant pressure. The

    volume of the gas doubles when the

    temperature of the gas is changed from

    200. K to 400. K

    200.°C to 400.°C

    400. K to 200. K

    400.°C to 200.°C

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