Lecture 5 Flashcards
1
Q
What is the formula for change in internal energy delta U
A
Q + W
2
Q
What are the 4 strokes of the Otto cycle?
A
- Intake
- Compression
- Power Stroke
- Exhaust
3
Q
What is formula for thermal efficiency of Otto Cycle?
A
Wout/Q_in
4
Q
What is the efficiency of a general heat engine?
A
1 - (Q_out/Q_in)
5
Q
What is the compression ratio of an otto cycle?
A
V_1 / V_2
6
Q
Why cant a cycle be 100 percent efficient?
A
Heat rejection is needed for cycle to reset
7
Q
Wat is the Carnot efficiency?
A
1 - T_out / T_in
8
Q
A
