Thermodynamics: Heat
Problems
Problem :
Say that a car engine runs at 600K. Calculate the Carnot efficiency for the engine.
Problem :
What temperature requirements make the Carnot efficiency at a maximum?
Problem :
Draw a diagram showing the entropy and energy flow in a refrigerator, just as we did for a heat engine. Include the possibility of unwanted additional entropy within the device.
Problem :
The little light in the fridge was designed to shut off long before conservation of electricity was an accepted concern. Why?
Problem :
Explain why we can't open the door to the refrigerator as a method to cool the house.
= 0.5





