Curriculum pressure point

General Chemistry as a Curriculum Pressure Point Development of Teaching General Chemistry A Materials Science Companion... 

The chapter begins with backgroimd information on the Tunisian EE system. It proceeds with a description of the research design and methods and a description of the people and questions that comprise the dataset. The study then details themes that emerge from respondents interviews, begiiuiing with their references to historical touch points, their view of the curriculum, the theme of regulation, and the theme of tension between internal and external pressures. Respondents address internationally comparative issues such as the French inheritance in Tunisia s system. 

The solid/liquid border extends upward indefinitely. However, the vapor/liquid border terminates at a condition called the critical point. Liquid and vapor are indistinguishable above the critical point. Vapor transforms into liquid without condensation. The vapor gets denser and denser until it is a liquid. Why That s thermodynamics -we warned you in the first chapter that we would occasionally have to postpone why until later in the curriculum. The critical point is at very high temperature and pressure for substances that are liquid at 25°C and 1 atm. For H2O, the critical temperature is 374°C and the critical pressure is 218 atm. For n-hexane, the critical point is 234°C and 29 atm. 

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