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IB Chemistry SL 1.1 Introduction to the Particulate Nature of Matter Questions

Practise IB Chemistry SL 1.1 by classifying elements, compounds and mixtures, selecting separation methods, and linking Kelvin temperature to particle motion and gas behaviour.

Syllabus
First assessment 2025
Course
Chemistry SL
Level
SL

Exam points

  • Classify elements, compounds and mixtures by bonding and fixed-ratio composition.
  • Identify mixture phases and choose a separation method from boiling point, solubility or polarity.
  • Explain the sharp propane volume increase on heating by linking vaporization to wider particle spacing.
  • Use Kelvin values and kinetic-energy graphs to relate temperature to particle energy and gas motion.

Covered syllabus points

1.1.1—Elements, compounds, and mixtures1.1.2—Kinetic molecular theory1.1.3—Temperature and kinetic energy

Question 1

[Maximum number: 1]

Which methods for separating the given mixtures into their components are correct?

Table for Question 1 — IB Chemistry SL
A

I and II only

B

I and III only

C

II and III only

D

I, II and III

Question 2

[Maximum number: 1]

What is the name of this change of state?

CO2( g)→CO2( s)\mathrm{CO}_{2}(\mathrm{~g}) \rightarrow \mathrm{CO}_{2}(\mathrm{~s})
A

Condensation

B

Deposition

C

Sublimation

D

Freezing

Question 3

[Maximum number: 1]

What happens to the average kinetic energy, KE , of the particles in a gas when the absolute temperature is doubled?
KE=12mv2\mathrm{KE}=\frac{1}{2} \mathrm{mv}^{2}

A

Increases by a factor of 2

B

Decreases by a factor of 2

C

Increases by a factor of 4

D

Decreases by a factor of 4

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