Particle Model and Atmospheric Evolution — OCR GCSE Combined Science B J260
OCR GCSE Combined Science B · J260
Particle Model and Atmospheric Evolution
What you need to know
Recall and explain the main features of the particle model in relation to states of matter and changes of state.
Distinguish between physical and chemical changes, recognizing that individual particles do not share the bulk properties of the substance.
Explain the limitations of the particle model regarding changes of state when particles are represented as inelastic spheres.
Explain the different temperatures of state changes using concepts of energy transfers and the relative strength of intermolecular forces.
Predict the states of substances under specified conditions using provided data.
Interpret scientific evidence regarding the original formation of the Earth's atmosphere.
Describe the developmental timeline of an oxygen-rich atmosphere.
Identify and describe the major sources of atmospheric pollutants, including carbon monoxide and particulates from incomplete combustion, sulfur dioxide from sulfur impurities, and oxides of nitrogen from high-temperature oxidation.
