IB Chemistry HL S1.5 Ideal gases questions

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Question 1

Paper 2Medium6 marks

A chemist compares equal amounts of gaseous nitrogen at two different sets of conditions. Figure 1 shows schematic particle diagrams for the samples.

Sample A: low pressure, high temperatureSample B: high pressure, low temperatureEach circle represents one gas molecule.
(a)

State three assumptions of the ideal-gas model.

[3]
(b)

Using Figure 1, identify the sample expected to show the greater deviation from ideal-gas behaviour.

[1]
(c)

Using Figure 1 and your knowledge of the ideal-gas model, explain how the conditions for this sample favour deviation from ideal-gas behaviour.

[2]

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