A-LevelChemistryStates of matter9701/12 · Feb/Mar 2017 · Q61 Mark

Which gas sample contains the fewest molecules?

A1.00 dm³ of carbon dioxide at 27 °C and 2.0 kPa

B1.00 dm³ of hydrogen at 100°C and 2.0 kPa

C1.00 dm³ of nitrogen at 300 °C and 4.0 kPa

D1.00 dm³ of oxygen at 250°C and 3.0 kPa

✓ Correct answer

B: 1.00 dm³ of hydrogen at 100°C and 2.0 kPa

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Topic: States of matter, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2017 Paper 1 Variant 2, question 6.

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