Practice IB Chemistry Topic S1.5 Ideal Gases with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for S1.5 Ideal Gases and mirrors Paper 1A, 1B, 2 style where relevant.
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A gas has a density of 1.25 at 298 K and 100 kPa. What is its molar mass?
Which change causes the greatest increase in pressure of a fixed mass of gas in a sealed container?
What is the effect of increasing temperature on the pressure of a fixed amount of gas in a sealed, constant-volume container?
Which change would cause a sample of gas to behave less ideally?
What happens to the volume of an ideal gas if the pressure is doubled at constant temperature?
25.0
30.9
35.5
45.6
Increasing volume and decreasing temperature
Decreasing volume and increasing temperature
Increasing volume and temperature
Decreasing volume and temperature
Pressure decreases
Pressure increases
Pressure stays the same
Volume increases
Increasing temperature
Decreasing pressure
Increasing volume
Decreasing temperature
Volume doubles
Volume triples
Volume is halved
Volume remains the same
