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Which of the gas laws does this graph illustrate?

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Which of the gas laws does this graph illustrate

Which of the gas laws does this graph illustrate?

A. Boyle

B. Charles

C. Gay-Lussac

D. Graham

QUICK ANSWER…

B

DETAILS…

Charles law is a gas law that relates temperature and volume. The graph shows a relation between volume and temperature starting from origin 0. This is in agreement with Charles law which states thus:

V1/T1 = V2/T2

Or V/T = K

Where K = constant = slope of the graph.

Now for the right answer to the above question:

  1. Option A is incorrect. Boyles law relates pressure and volume. (P1V1 = P2V2)
  2. Option B is correct.
  3. C is incorrect. Gay-Lussac’s law relates pressure and temperature at constant volume. (P1/T1 = P2/T2)
  4. D is not the correct answer. Graham’s law has to do with rate of diffusion.
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KEY-POINTS…

You may please note these/this:

  • Charles law states that the VOLUME of a given fixed quantity of gas is directly proportional to its temperature when the pressure is kept constant.
  • Charles law implies that the higher the temperature of a fixed mass of gas, the higher its volume.
  • Gay-Lussac’s law states that the pressure of a fixed mass of gas is directly proportional to its absolute temperature when the volume is kept constant.

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/ culled from 2020 JAMB-UTME chemistry past question 7 /

1 Answers

  1. +1 Votes Thumb up 0 Votes Thumb down 0 Votes

    Charles law implies that the higher the temperature of a fixed mass of gas, the higher its volume.

    Admin - Mar 26, 2022 | Reply


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