A-LevelChemistryStates of matter9701/12 · Oct/Nov 2020 · Q71 Mark

A weather balloon is filled with 12.0 kg helium. The weather balloon reaches a height of 20 km, the pressure inside the balloon is 6000 Pa and the temperature is 216 K. What is the volume of the weather balloon at this height, correct to three significant figures?

A897 dm³

B1790 dm³

C897 000 dm³

D1790 000 dm³

✓ Correct answer

C: 897 000 dm³

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Topic: States of matter, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2020 Paper 1 Variant 2, question 7.

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