PASS 2/5

The state principle says we need how many independent intensive properties to determine the state of the principle?

• The number of relevant work interactions+1

• The number of relevant work interactions

• The number of relevant work interactions-1

• The number of relevant work interactions*2

T/F: All intensive properties are independent

• True

• False

What is the order of phases for cooling

• Superheated vapor, saturated vapor, saturated liquid, liquid

• Superheated vapor, saturated vapor, liquid, saturated liquid

• Saturated vapor, superheated vapor, liquid, saturated liquid

• Liquid, saturated liquid, superheated vapor, saturated vapor

Phase

• Can have non homogeneous chemical composition, but must have homogeneous physical structure.

• Can have both non homogeneous chemical composition and physical structure.

• Must have the homogeneous chemical composition and physical structure.

• Is homogeneous and invariable in chemical composition.

For x is defined as quality (m vapor/m), a two phase structure has...

• x=0

• x=1

• 0<x<1

• x=0.5

A quality of 40% means...

• There is 40% more saturated vapor than saturated liquid, by volume

• There is 40% more saturated vapor than saturated liquid, by mass

• The mixture is 40% saturated vapor, by mass

• The mixture is 40% saturated liquid, by mass

For a system with 4 relevant work interactions, how many independent intensive properties are needed to define the system?

• 5

• 4

• 3

• 1

T/F: Density and specific volume are independent intensive properties

• True

• False

Because we already had exam 1...

• Nothing from the first two chapters will come up in the class again. It's safe to forget it.

• My grade is permanently set in stone and can no longer change.

• Exam 1 equations and concepts are important to the class, so I should review anything I'm still not confident on.

• I no longer have to regularly attend PASS in order to earn on average one letter grade higher than those who do not.