Energy Flashcards
What is the equation for heat?
heat = specific heat capacity X mass X change in temperature
Example: E = cmΔT
What is the equation for specific latent heat?
heat = mass X specific latent heat
Example: E = ml
What is the unit of heat?
Heat is measured in Joules (J).
What does temperature measure?
Temperature measures how hot or cold something is.
What are the units for temperature?
Temperature can be measured in degrees Celsius (°C) or Kelvin (K).
What is specific heat capacity?
Specific heat capacity is the energy required to raise the temperature of 1kg of a substance by 1°C.
What are the units for specific heat capacity?
The units are Joules per Kilogram per degrees Celsius (J kg⁻¹ °C⁻¹).
What is specific latent heat?
Specific latent heat is the energy required to change the state of 1kg of a material.
What are the units for specific latent heat?
The units are Joules per Kilogram (J kg⁻¹).
What is fusion?
Fusion is when a material changes state between a liquid and a solid.
What is vaporisation?
Vaporisation is when a material changes state between a liquid and a gas.
What is pressure?
Pressure is the measure of the forces applied to an area.
What are the units for pressure?
Pressure is measured in Newtons per square meter or Pascals (Pa).
What is Boyle’s Law?
In a gas of fixed temperature, as pressure increases, the volume decreases.
What is Charles’ Law?
In a gas of fixed pressure, as temperature increases, the volume also increases.
