Propities of Matter Flashcards
What is the specific heat capacity?
The Specific Heat Capacity is the energy needed to raise the temperature of 1kg of a substance by 1C.
What is the difference between Temperature and Heat?
Temperature = average kinetic energy of the particles in an object.
Heat = total kinetic energy of the particles in an object.
What is conduction?
The transfer of heat through a solid.
What is convection?
Convection is the transfer of heat by the movement of fluids (liquids and gases).
What is radiation?
Radiation is the transfer of heat through (infrared) waves rather than particles.
What emits heat radiation?
All objects emit (and absorb) radiation in the form of heat (infrared radiation)
What is the principle (or law)of conservation of energy?
Energy cannot be created or destroyed, but can change from one form to another.
What is it called when a solid turns into a liquid by melting?
Fusion
What is it called when a liquid turns into a gas by evaporating?
Vaporisation
What is it called when a gas turns into a liquid?
Condensing
What is it called when a liquid turns into a solid?
Freezing
When is substance changes from one state to another, what happens to its temperature?
It remains constant
Why is specific heat capacity different from specific latent heat ?
Specific heat capacity only deals with one state where as specific latent heat takes into account changes in state.
What is specific latent heat?
The specific latent heat (l) of a substance is the amount of heat energy required to change the state of 1 kg of the substance.
