· 5.18 use the relationship between the pressure and Kelvin temperature of a fixed mass of gas at constant volume: p1 / T1 = p2 / T2 p1 = Pressure at the beginning [kPa, bar or atm ] T1 = Absolute temperature at the beginning [K] p2 = Pressure at the end [kPa, bar or atm] T2 = Absolute temperature at the end [K] (Note: the units of temperature must be Kelvin, not oC! The units of pressure can be any, as long as the same at the beginning and the end) 5.18 Experiment 07 November 2011 14:32
[cid:image001.png@01CCA8FD.84B0E700]
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· Change the temperature of a fixed mass of gas at a constant volume
· Measure the pressure
· Use the EXCEL spreadsheet to analyse your results 5.18 Ideal graph and conclusion 09 November 2011 15:15
[cid:image002.png@01CCA8FD.84B0E700] 5.18 Question
Collins, p.116 [cid:image003.jpg@01CCA8FD.84B0E700]
a. If we cool the gas in a rigid, sealed tin can, what happens to the pressure inside the can? (1 mark)
b. Explain your answer to part a. by using the Kinetic Theory (4 marks) ANSWERS:
a) 
[cid:image001.png@01CCA8FD.84B0E700]
>
· Change the temperature of a fixed mass of gas at a constant volume
· Measure the pressure
· Use the EXCEL spreadsheet to analyse your results 5.18 Ideal graph and conclusion 09 November 2011 15:15
[cid:image002.png@01CCA8FD.84B0E700] 5.18 Question
Collins, p.116 [cid:image003.jpg@01CCA8FD.84B0E700]
a. If we cool the gas in a rigid, sealed tin can, what happens to the pressure inside the can? (1 mark)
b. Explain your answer to part a. by using the Kinetic Theory (4 marks) ANSWERS:
a)
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