CHAPTER 1

Question 1

What is the difference between extensive properties and intensive properties?

Answer 1

Extensive depends on size of system
Intensive is independent of size of system

Question 2

What is the distinction between state and path properties?

Answer 2

State tells nothing about how system reaches a given state
Path depends on particular path followed by the system

Question 3

What is the thermodynamics 2nd law tell us?

Answer 3

ΔS(tot) > 0
Entropy will always increase over time

Question 4

What is the physical meaning of entropy?

Answer 4

Disorder of molecules

Question 5

What is the third law of thermodynamics?

Answer 5

Entropy of a pure substance in its stable form is 0 @ 0K

Question 6

What does the third law tell us?

Answer 6

Absolute entropy of a substance at temperature T for constant P

Question 7

What are the types of systems?

Answer 7

isolated: no mass, energy, or momentum transfer
closed: no mass transfer, but energy and momentum can transfer
open: mass, energy, and momentum can transfer