6.5 ; specific latent heat

Question	Answer
Energy added can do two things. What are they?	1. increase kinetic energy 2. break/make bonds
potential energy =	= intermolecular forces
What is latent heat?	the energy needed for a substance to change its state and break its bonds, without changing the temperature
define specific latent heat	the amount of energy required to melt/boil 1kg of a substance without changing its temperature
What is the formula for latent heat?	specific latent heat = energy / mass
The amount of energy required to change the state of a sample depends on what?	1. the substance 2. the state change 3. the mass
define specific latent heat of fusion	the energy needed to change the state of 1kg of a substance from solid to liquid
define specific latent heat of vaporisation	the energy needed to change the state of 1kg of a substance from liquid to gas

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	Created by Farha Idrees about 7 years ago

	Copied by Farha Idrees over 6 years ago