Section 3 - Energy Transfer by Heat, Work & Mass Flashcards
1
Q
When is an energy interaction heat?
A
An energy interaction is heat only if it takes place because of a temperature difference.
2
Q
True or false; Can heat transfer take place between two bodies at the same time?
A
False; no heat transfer can take place between two bodies at the same time.
3
Q
What is an adiabatic process?
A
A process during which there is no heat transfer.
4
Q
What are the three main types of work?
A
1 - Boundary Work
2 - Rotating Shaft Work
3 - Electrical Work
5
Q
What type of quantities are heat and work?
A
Directional quantities.
6
Q
Regarding a work interaction between a system and surroundings, what must the boundary do?
A
It must move.
7
Q
What is flow work?
A
The work required to ‘push’ a mass into or out of a control volume.
