PHYS 2 Chapter Notes - Chapter 17.5 - 17.7: Phase Rule, Heat Transfer, Calorimetry
Document Summary
Phase change/transition = a transition from one phase to another. Heat of fusion = the heat required per unit mass to change 1 kg of solid at 0 c to 1 kg of liquid at. Convection = transfer of heat by mass motion of a fluid from one region of space to another. Sublimation = when a substance can change directly from the solid to the gaseous phase. Supercooled = an unstable state when pure water can be cooled several degrees below the freezing temperature without freezing. Superheated = liquid can be superheated above its normal boiling temperature. Phase equilibrium = when liquid and solid phases coexist. Freezing temperature and melting temperature are the same. Heat of vaporization = when liquid and gaseous phases coexist. Heat transfer in a phase change is the latent heat for this phase change: for heat entering (material melts, for heat leaving (material freezes)
