Properties Of Matter Flashcards
What is Specfic Heat Capicity?
The energy required to raise the temperature of 1 kg of a material by 1 degree celsius.
What is the unit for specific heat capacity?
Joules per Kilogram Per Degree celsius (Jkg-1C-1)
To increase different materials tempature, what factors affect a material?
Mass, the tempature change involved, type of material
How do you reduce heat loss in an experiment?
Wrap the experiment in some type of insulating material.
What is specific latent heat of fusion?
The energy required to change the starte of 1 kg of a material from solid to liquid.
What is specific latent heat of vaporisation?
The energy required to change the state of 1 kg of a material from liquid to gas.
What is the unit for Specific Latent Heat Of Fusion/Vaporisation?
Joules per kilogram (J Kg-1)
When do you use the Specific Heat capacity Equation?
When a substance is changing temperature.
When do you use the specific latent heat of fusion/vaporisiation equation?
When a substance is changing state.
Does the temperature of a substance change when it changes state?
NO
What is the definition for pressure?
Pressure is the force acting per metres squared of a surface.
What is the unit for pressure?
Pascals (Pa)
What area of something gives the GREATEST pressure?
The SMALLEST surface area touching the ground/floor
What is the definition of a temperature of a substance?
The measure of the mean kinetic energy of it’s particles.
What is absolute zero?
0 Kelvin (K)
When do you use the general gas equation?
When Pressure, Volume and temperature are all changing
Pressure and Volume Gas Law
As the volume of the container is decreased:
Particles collide with container walls more frequently
Overall force on walls is greater
Pressure increases
Pressure and temperature gas law
As temperature is increased:
Particles move faster (more kinetic energy)
hit container walls more frequently and with greater force
Pressure increases
Volume and Temperature Gas Law
Temperature increased:
Particles move faster (More kinetic energy)
Volume increases
Force and pressure remain constant due to volume increase
