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10 questions
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  • Q1

    Jane can still pump air in the party balloon even though it is already inflated. What explains this phenomenon?

    Air molecules can be compressed.

    The air inside the balloon is hot.

    Balloons look better if their size is bigger.

    Balloons are made up of plastic.

  • Q2

    What happens to the lungs of a scuba diver as it moves closer to the seafloor?

    The lungs explode.

    The lungs expand.

    The lungs compress.

    There is no change in the lungs.

  • Q3

    Which phenomenon best illustrates Charles’ Law?

    Carbon dioxide is dissolved in water.

    Breathing apparatus being used by a patient

    Expansion of the balloon as it is being submerged in hot water

    The leavening agent causing the fluffiness of cake products

  • Q4

    Records show that the incidence of tire explosions is high during the summer season. Which of the following gives the best explanation for this observation?

    Vehicles’ tires are not well maintained.

    There is too much air inside the tires.

    There are more travelers during summer vacations.

    High temperature during the summer season causes the air inside the tire to expand.

  • Q5

    If the temperature of a fixed quantity of gas decreases and the pressure remains unchanged,

    its volume increases.

    its volume is unchanged.

    its volume is neglected.

    its volume decreases.

  • Q6

    How can you possibly prove that gases have negligible mass?

    Put a balloon in a digital balance before and after you fill it with air.

    Feel the weight of the samples on both hands.

    Support your claim through an equation.

    Ask two persons to hold a box filled with air.

  • Q7

    What is NOT an assumption of the kinetic molecular theory to the motion of the gas?

    It moves in a straight-line motion.

    It moves in a constant motion.

    It moves in a curved path.

    It moves in random motions.

  • Q8

    Which is an assumption of the kinetic molecular theory?

    The particles of gas collide and emit energy to the surroundings.

    The particles of gas attract one another via intermolecular forces.

    The speed of the particles in a gas is directly proportional to the Kelvin temperature.

    The particles of gas have a distinct volume measured in mL.

  • Q9

    A gas occupies a volume of 2.0 L at a pressure of 1.0 atm. If the volume of the gas decreases to half of its original value, what is its new pressure if the temperature remains unchanged?

    1.0 atm

    2.0 atm

    1.5 atm

    0.5 atm

  • Q10

    The pressure of a gas is kept constant. If the initial temperature is doubled, what will happen to the volume it occupies?

    It will decrease to half of its original value.

    It will be doubled.

    It will be the same value as the pressure.

    Nothing will change in the volume.


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