PHYSICS 489 - Week 28

PHYS 28.1 The Second Law & the Carnot Engine
Reading: Don't Panic Vol III pp 93-101
Homework: Ch. 4: Pr 2,3; Ex 2,3
Keywords: Carnot efficiency, Refrigerator efficiency

Learning Objectives:

At the end of this session the student will be able to:
  1. calculate the work done and the net heat in for the processes in a Carnot cycle with an ideal gas.
  2. provide the general definition of the efficiency of a refrigerator.

PHYS 28.2 Other Reversible Engines
Reading: Don't Panic Vol III pp 101-107
Homework: Ch. 4: Pr 4,5; Ex 4,5
Keywords: 2nd law statements, Carnot theorems, Real Engines

Learning Objectives:

At the end of this session the student will be able to:
  1. state the Kelvin and Clausius versions of the Second Law.
  2. state the theorems of Carnot regarding engines.

PHYS 28.3 Entropy
Reading: Don't Panic Vol III pp 123-128
Homework: Ch. 5: Pr 1-3; Ex 1-3
Keywords: Entropy, Adiabatic free expansion

Learning Objectives:

At the end of this session the student will be able to:
  1. define the entropy function in terms of path integrals in the PV plane.
  2. calculate the change in entropy for simple reversible processes.
  3. calculate the change in entropy for irreversible processes.