RP8- boyle's law

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6 Terms

1
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what is boyle’s law?

pressure and volume are inversely proportional when temperature is kept constant?

2
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describe how to find the cross-sectional area of the rubber seal

  • use a micrometer to measure the diameter (do this three times and find the average)

  • convert from mm to m

  • use the πd²/4

3
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why is it important that the syringe is clamped above the plunger?

so the barrel doesn’t distort and make it difficult for the plunger to move freely

4
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why should you make sure the syringe is lubricated?

so the plunger can move more freely without sticking

5
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state the standard value for atmospheric pressure

101 kPa

6
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suggest why a straight line may not be produced when plotting P against 1/V

  • the plunger may have faced some resistance to its motion as masses were added

  • if it is sticking to the barrel this is an error that will result in an inaccurate measured change in volume