Properties Of Matter Flashcards
What is pressure?
Pressure is force per unit area.
Kelvin - Degrees Celcius
-273
Degrees Celcius- Kelvin
+273
Absolute zero
- Particles have no kinetic energy
- No pressure exerted
What is specific heat energy?
Energy required to change 1kg og a substances temperature by 1 degrees celcius.
Volume-Temperature
- Temperature Increases
- Particles move quicker
- Container wall more often and harder
- Pressure constant the area the particles hit increases, volume increases
Pressure-Temperature
- Temperature increases
- Particles move faster
- Container wall more often and harder
- Increases force per unit area
- Pressure increases
Pressure-Volume
- Volume decreases
- Hit container wall more often
- Pressure increase
- Container wall more often exerts bigger force per unit area.
1cm squared
1 x 10 -4 m squared
What is happening if the graph is sloping?
Solid, Liquid or Gas
What happens if the graph is straight?
It is condensing or freezing
Weight is measured in…
Newtons
Mass is measured in…
Kg
What is gravitational potential mesured in…
N/Kg
What is pressure measured in…
Pa
What is force measured in…
Newtons
What is area measured in…
m squared
What is heat energy measured in…
J
What is specific heat capacity measure in…
Jkg -1 degrees celcius -1
What is the temperature change measured in…
degrees celcius
What is volume measured in…
m cubed
What is latent heat of fusion measured in…
Jkg-1
What is latent heat of vaporisitaion measured in…
Jkg-1
What is energy measured in…
J
What is latent heat of fusion?
1kg of a solid at its melting point into 1kg of a liquid
What is latent heat of vaporisation?
1kg of a liquid at its boiling point into 1kg of gas
What is 10- 20 d.c. in k
20+273= 293K
10+273= 283K
293-283= 10 K
In equations using P1, P2, V1, V2, T1, T2 what do you need to remember
To change the temperature from degrees celcius to kelvin
