Objectives

You have completed this lesson when you can:

Describe the solid, liquid, and gas phases in terms of their molecular motion and the forces between particles
Define energy, heat, and temperature and explain the relationship and differences between thermal energy and temperature.
For a material changing its temperature, do calculations relating the heat lost or gained, change in temperature, mass of the material, and heat capacity (or specific heat) of the material.
Define heat capacity and memorize the heat capacity of water.
Define and use proper symbols, units, and sign conventions for the heat involved in phase changes (heat of fusion/vaporization/sublimation).
For a material changing phase, do calculations relating the heat lost or gained, mass of the material, and the heat of fusion/vaporization/sublimation as appropriate for the change happening.
Define and properly use the terms "endothermic" and "exothermic"
Draw an interpret heating and cooling curves
Relate thermal properties of substances to patterns in their bonding and intermolecular forces.
Identify and describe the properties viscosity, surface tension, volatility, and vapor pressure and relate them to intermolecular forces.
Use kinetic molecular theory and bonding to describe phases, phase changes, melting and boiling points, and heating and cooling curves.

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