IB A15.2 Carnot Cycle

1. If you compress 16.0 liters of an ideal gas that is at 14.0 psi adiabatically (quickly) so that the pressure doubles, what is the new volume?
(10.6 liters)

Problems like this:

AdiabaticPV WB#1

AdiabaticPV WB#2

AdiabaticPV WB#3

AdiabaticPV WB#4

2A. A heat engine consumes 57 J of heat and does 23 J of work. What heat does it waste?
(34 J)

Problems like this:

Qh=Qc+W Example #1

Qh=Qc+W Example #2

Qh=Qc+W Example #3

2B. A heat engine is 13.5% efficient. How much heat does it waste if it does 45.0 J of work?
(288 J)

Problems like this:

Qh=Qc+W Example #4

Qh=Qc+W Example #5

Qh=Qc+W Example #6

3. A heat engine that has a Carnot efficiency of 56.0 % and has a cold temperature of 85.0 ^oC, has what as its hot temperature? (Answer in Celsius)

(541 ^oC)

4. What is its Carnot efficiency?

(0.474)

Problems like this:

Carnot Example #1

Carnot Example #3

5AB.

5A. At what (Watt) rate is heat supplied to the heat engine?

(462 W)

5B. At what rate is heat wasted by the heat engine?

(243 W)

Problems like this:

Carnot Example #1

Carnot Example #2

Carnot Example #4