A5- Effects of Temperature Changes on Materials Flashcards
1
Q
What is sensible heat?
A
The heat energy that causes temperature change in a material.
2
Q
What is latent heat?
A
The energy absorbed by a material to change state but not cause a temperature rise.
3
Q
What is latent heat of fusion?
_________—>___________
What is latent heat of vaporisation?
__________—>______
A
Solid—>Liquid
Liquid—>Gas
4
Q
What is linear expansivity?
A
Expansion of a material in all directions.
5
Q
What are 3 ways the rate of evaporation can be raised:
1.
2.
3.
A
- Raise the temperature.
- Increase the surface area.
- Reduce humidity.
6
Q
What is the term for:
The rate of change of unit length per unit degree change in temperature.
A
Coefficient of linear expansion.
