Assessment Objectives

Detailed Breakdown: Particulate Nature of Matter

• Distinguish between elements, compounds, and mixtures using particle diagrams.
• State the temperature in Kelvin when given degrees Celsius ($K = ^\circ\text{C} + 273.15$).
• Explain the change of state from liquid to gas using the kinetic molecular theory and potential energy changes.
• Interpret heating and cooling curves to identify the boiling and melting points of pure substances and mixtures.
• Describe the behavior of an ideal gas in terms of the kinetic molecular theory.
• Evaluate the suitability of fractional distillation for separating a mixture of two liquids with close boiling points.
• Compare the physical properties of a pure substance vs its mixture (e.g. melting point depressions).