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1 markGas Laws

CSEC Physics · 1998 · Paper 2 · Question 1(a)

An experiment investigates the relationship between the volume and pressure of a trapped mass of dry air at constant temperature using an oil chamber, pump, and pressure gauge. A volume-pressure curve is provided.

Explain how you would ensure that the temperature of the gas remains constant during the experiment.

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Other parts of this question

  1. 1(b)Given the relationship 1/V = k * P, read off values of V from the graph at the specified pressures to complete Table 1, and calculate the corresponding values…[9 marks]
  2. 1(c)Plot a graph of 1/V against P on the grid provided on page 5.[8 marks]
  3. 1(d)State what conclusion can be drawn from the plotted graph, giving a reason for your answer.[2 marks]
  4. 1(e)Given that the gradient of the graph equals the value of k, calculate k.[5 marks]
  5. 1(f)(i)Calculate the volume of the air in the tube if the pressure is increased to 550 kPa, assuming 1/V = k * P applies.[3 marks]
  6. 1(f)(ii)Calculate the pressure of the air when its volume is at its maximum of 65 cm^3.[2 marks]

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