|IB syllabus > bonding (sl) > 12.2|
5.1 - States of matter
5.1.1 Describe and compare solids, liquids and gases as the three states of matter.
The movement of particles, the attractive forces between particles and
the interparticular spacing should be described. A molecular level description
of what happens when evaporation, boiling, condensation, melting and freezing
occur should be given. Students should understand what is meant by the
5.1.2 Describe kinetic energy in terms of the movement of particles whose average energy is proportional to absolute temperature
Kinetic energy should be interpreted in terms of ideal gases consisting
of point masses in random motion whose energy is proportional to absolute
temperature. Students should be able to describe what happens when the
temperature is changed
5.1.3 Describe the Maxwell- Boltzmann energy distribution curve.
5.1.4 Draw and explain qualitatively the Maxwell- Boltzmann energy distribution curve for different temperatures.
5.1.5 Describe qualitatively the effects of temperature, pressure and volume changes on a fixed mass of an ideal gas.
5.1.6 State the ideal gas equation PV = nRT
5.1.7 Apply the ideal gas equation in calculations
Use the relationship between P, V, n and T for gases. Students should
be familiar with P1V1/T1 = P2V2/T2 and be able to calculate molar volumes
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