Thermodynamics Flashcards
1
Q
What is a system
A
A set of interconnected parts
2
Q
Open system
A
One that exchanges matter and energy with its surroundings
3
Q
Closed system
A
On that cannot exchange matter but can exchange energy with its surroundings
4
Q
Isolated system
A
One that cannot exchange either matter or energy with its surroundings
5
Q
First law
A
The total energy, including heat in a system remains constant
6
Q
How can the energy of a system be increased
A
Heat can be added from its surroundings and work can be done on the system by its surroundings
7
Q
How can the energy is a system decrease
A
Heat can flow out of a system to its surroundings, work can be done by a system in its surroundings.
8
Q
Second law of thermodynamics
A
Heat always flows naturally from a hot object to a cold object, never the opposite
