Boyles And Charles Law

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Boyles And Charles Law - Quiz


Questions and Answers
  • 1. 

    A balloon occupies a volume of 2.0 L at 40oC. How much volume will it occupy at 30oC?

    • A.

      1.5 L

    • B.

      1.94 L

    • C.

      1.6 L

    Correct Answer
    B. 1.94 L
    Explanation
    Make sure you change to Kelvin!! (add 273) or you will get the WRONG answer!!

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  • 2. 

    What is the final pressure in a balloon when the volume is changed from 1.5  L to a volume of 2.5L at constant temperature? (Initial pressure is 1.1 atm).

    • A.

      .66 atm

    • B.

      .66 kPa

    • C.

      4.125 atm

    Correct Answer
    A. .66 atm
    Explanation
    The units will be the SAME on both sides of the equation.

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  • 3. 

    Gas in a balloon occupies 3.3  L. What volume will it occupy if the pressure is changed from 100 kPa to 90  kPa (at constant temperature of 310 K (about room temperature).

    • A.

      29,700 L

    • B.

      2.97 L

    • C.

      3.6 L

    Correct Answer
    C. 3.6 L
    Explanation
    The units will be the SAME on both sides of the equation.

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  • 4. 

    What is the final pressure in a vessel when the volume is changed from 1.3  L to a volume of 1.55 L at constant temperature? (Initial pressure is 1.5 atm).

    • A.

      1.25 L

    • B.

      1.65 L

    • C.

      1.49 L

    Correct Answer
    A. 1.25 L
    Explanation
    The units will be the SAME on both sides of the equation.

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  • 5. 

    A balloon occupies 3.2 L at 37oC. How much will it occupy at 42oC?

    • A.

      3.15 L

    • B.

      3.25 L

    • C.

      312,480 L

    Correct Answer
    B. 3.25 L
    Explanation
    Make sure you change to Kelvin!! (add 273) or you will get the WRONG answer!!
    V1/T1 = V2/T2 Charles' law

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  • 6. 

    A gas occupies a balloon with a volume 2.0 L at 33oC. How much volume will it occupy at 37oC, if pressure remains constant.

    • A.

      1.97 L

    • B.

      186,000 L

    • C.

      2.06 L

    Correct Answer
    C. 2.06 L
    Explanation
    Make sure you change to Kelvin!! (add 273) or you will get the WRONG answer!!

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  • 7. 

    A gas expands from a volume 2.0 L at 36oC to a volume of 2.5 L, what is the final temperature, if the pressure is constant?

    • A.

      386 K ( which equals 113.25 Celsius)

    • B.

      247.2 K (which equals -25.8 C)

    • C.

      61.8 K (which equals -211.2 C)

    Correct Answer
    A. 386 K ( which equals 113.25 Celsius)
    Explanation
    Make sure you change to Kelvin!! (add 273) or you will get the WRONG answer!!
    V1/T1 = V2/T2 Charles' law

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  • 8. 

    If the air inside a balloon is heated, the volume will:

    • A.

      Increase

    • B.

      Decrease

    • C.

      Increase a little, then decrease.

    Correct Answer
    A. Increase
    Explanation
    Temperature and Volume are directly related (Charles' law): When temperature is increased, volume will also increase.

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  • 9. 

    According to the Kinetic Theory of Gases which is true

    • A.

      Gases are compressible because of the space between particles.

    • B.

      The distance between molecules in ideal gases is closer than in liquids or solids.

    • C.

      The gases are NOT fluid

    Correct Answer
    A. Gases are compressible because of the space between particles.
    Explanation
    According to the Kinetic Theory of Gases, gases are compressible because of the space between particles. This is because gas particles are in constant motion and have a lot of empty space between them. When pressure is applied to a gas, the particles can be pushed closer together, reducing the volume of the gas. This is in contrast to liquids and solids, where the particles are closer together and have less empty space between them, making them less compressible. Therefore, the statement "Gases are compressible because of the space between particles" is true according to the Kinetic Theory of Gases.

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  • 10. 

    Which of the following describes the relationship between P and V?            

    • A.

      Directly proportional

    • B.

      Inversely proportional

    • C.

      Unrelated

    Correct Answer
    B. Inversely proportional
    Explanation
    The relationship between P and V is described as inversely proportional. This means that as one variable (P) increases, the other variable (V) decreases, and vice versa. In other words, there is a negative correlation between P and V, where an increase in one variable leads to a decrease in the other variable.

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  • 11. 

    Boyle's Law expresses the relationship between

    Correct Answer
    pressure and volume
    p and v
    volume and pressure
    v and p
    Explanation
    Boyle's Law states that the pressure and volume of a gas are inversely proportional to each other at a constant temperature. This means that as the volume of a gas increases, the pressure decreases, and vice versa. The correct answer expresses this relationship by stating that Boyle's Law relates pressure and volume, represented by p and v respectively. It also correctly states that volume and pressure, represented by v and p respectively, are related according to Boyle's Law.

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  • 12. 

    T1/P1 = T2/P2 is Charles's Law

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    This statement is false because T1/P1 = T2/P2 is not Charles's Law. Charles's Law states that the volume of a gas is directly proportional to its temperature, assuming constant pressure. The correct equation for Charles's Law is V1/T1 = V2/T2. Therefore, the given statement is incorrect.

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  • Current Version
  • Aug 24, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 02, 2013
    Quiz Created by
    Sjhvenegas
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