Chapter Objectives

1. State and discuss the first and second laws of thermodynamics.
2. Differentiate between heat and temperature. 
   
3. Describe the three methods of heat transfer and be able to calculate flow rates.
   
4. Differentiate between a heat pump and a heat engine.
   
5. Define efficiency and coefficient of performance and be able to calculate them for different scenarios.
   
6. Discuss energy usage in the United States both in the private sector and in industry.

1. If 350 J of work are done on a gas and 200 J of heat are added to it, by how much does its internal energy change?
2. An ice cube at 0 ^oC is put into a drink that is at 15 ^oC.  Which way does heat flow, and what will be the final state of the system?
3. A car takes in 20,000 J of gasoline energy and outputs 3,000 J of kinetic energy.  What is the efficiency of the car?
4. What are 3 things that you could do to your home to improve its energy usage?  Are these changes economically feasible?