Thermal physics Flashcards
1
Q
What is specific heat capacity?
A
The energy required to raise the temperature of 1kg of the substance by 1 degree
2
Q
What is the formula for specific heat capacity?
A
Energy transferred = Mass x specific heat capacity x temperature change
3
Q
What is specific latent heat?
A
Specific latent heat is the energy needed to change the state of 1kg of the substance
4
Q
What is the formula for specific latent heat?
A
Specific latent heat of fusion = Energy/Mass
5
Q
How does evaporation occur?
A
When a particle at the surface has enough energy to escape from the liquid
6
Q
How can the rate of evaporation be increased?
A
- Increasing surface area
- Increasing energy (heat)
- Increasing breeze (moving air)
7
Q
What is conduction?
A
The vibration of particles passed objects which are in direct contact
8
Q
What is convection?
A
The movement of fluids due to a change of temperature
