P6- Molecules And Matter Flashcards
1
Q
What is the equation for density?
A
Density, kilogram per cubic metre, kg/m^3) = mass, m kilograms kg) / volume v
2
Q
What do objects that have a lower density than water do?( ie,< 1000kg/m^3 )
A
Float in water
3
Q
What is specific latent heat of fusion and what is its equation
A
It is the amount of energy needed to change the state of 1kg of the substance from solid to liquid at its melting point without changing the temperature.
4
Q
What is latent heat?
A
It is the energy needed for a substance to change its state without changing its temperature.
5
Q
What is specific latent heat of vaporisation?
A
The amount of energy needed to change the state of 1kg of the substance from a liquid to vapour at its boiling point.
