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5 marksGas Laws

CSEC Physics · May/June 2015 · Paper 2 · Question 5(b)(ii)

A piston traps a mass of gas in a cylinder. At 25 °C, the pressure of the gas is 5 atmospheres when its volume is 50 ml.

After resetting the piston, the gas returns to its initial pressure and volume. If the volume is now fixed while the gas is heated to 60 °C, calculate the final pressure of the gas.

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Other parts of this question

  1. 5(a)(i)Describe how the graph of Volume versus Temperature (in Celsius) of a gas can be used to derive the Kelvin scale?[4 marks]
  2. 5(a)(ii)State the mathematical relationship between the Kelvin and Celsius temperature scales.[2 marks]
  3. 5(b)(i)Calculate the volume of the gas if its pressure drops to 1 atmosphere at constant temperature.[4 marks]

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