Specific latent heat and specific heat capacity
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8 Terms
what is specific latent heat
the energy required to change 1kg of a particular substance from one state to another without changing its temperature
what is specific latent heat of vaporisation
energy change when a substance changes between a liquid and gas
what is specific latent heat of fusion
energy change when a substance changes between a solid and a liquid
what is latent heat dependent on
- type of substance
- amount of substance
why does temperature remain constant when changing state on the cooling curve
the formation of new bonds releases energy, so it counteracts the cooling keeping the temperature constant
why does temperature remain constant when changing state on the heating curve
the energy that we're providing is being used to weaken or break the forces holding particles together, rather than increasing the particles' internal energy
What is specific heat capacity?
The amount of energy required to increase the temperature of 1kg of a substance by 1oC
What is internal energy?
total energy stored by the particles making up a substance or system
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