Lesson 2: Properties Of Liquid Flashcards
1
Q
What are the five properties of liquid?
A
- Viscosity
- Cohesion/Surface tension
- Vapor pressure
- Boiling point
- Molar heat of vaporization
2
Q
- resistance of liquid to flow
A
Viscosity
3
Q
Viscosity of liquids decreases rapidly with an ______ in temperature
A
increase
4
Q
Viscosity:
The stronger the intermolecular force, the ______ the viscosity.
A
higher
5
Q
- inward net force causes molecules in the surface to contract and resist being stretched or broken
A
Cohesion
6
Q
- measure of elastic force
A
surface tension
7
Q
Cohesion/Surface tension:
The stronger the intermolecular force, the ______ the surface tension
A
greater
8
Q
Application:
____ are detergents that lower the surface tension of water
A
Surfactants
9
Q
- measure of the tendency of a material to change into the gaseous or vapor
- increases with temperature
A
Vapor pressure
10
Q
Vapor pressure:
The stronger the intermolecular force, the _____ the vapor pressure
A
lower
11
Q
- temperature at which vapor pressure is equal to atmospheric pressure
A
Boiling point
12
Q
Boiling point:
The stronger the intermolecular force, the _____ the boiling point
A
Higher
13
Q
- heat absorbed or required to vaporize at its boiling point
A
Molar heat of vaporization
14
Q
Molar heat of vaporization:
The stronger the intermolecular force, the _______ of heat of vaporization
A
big amount
