What you should learn from associated chapters & lectures for Midterm 3
Last revised: April 10 2017.Chapter 8:
- How to calculate work done by a system and heat delivered to a system for a specified cycle or portion of such a cycle. How to tell change in internal energy if the working substance is an ideal gas.
- How to tell whether a heat machine is an engine or a refrigerator.
- How to tell whether a heat machine is reversible, irreversible or impossible.
- Carnot efficiencies for an engine and a refrigerator.
- Concept of enthalpy.
Chapter 9:
- G=N*mu for a single-component system.
- Notation for reactions and different ways of writing down a condition for equilibrium with respect to a reaction, including the law of mass action.
- How to calculate the quotient for a reaction and use it to tell whether the reaction will progress forward or backward as the system strives towards equilibrium.
- How to calculate an equilibrium constant using equilibrium constants for other reactions.
- How to tell enthalpy for a reaction using enthalpies for constituents and/or other reactions. Relation of the enthalpy to heat under conditions of constant pressure and temperature.
Chapter 10:
- Meaning of a phase diagram: concepts of coexistence line, triple point and critical point.
- Clausius-Clapeyron equation and its uses.
- Van der Waals equation of state.
- How to find the location of a critical point given an equation of state.
- Concept or reduced variables.
- Maxwell construction.