Specific Latent Heat (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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Define specific latent heat
Define specific latent heat
The energy needed to change the state of 1 kg of a substance without a temperature change
What mass is used in the definition of specific latent heat?
What mass is used in the definition of specific latent heat?
1 kg
Does temperature change during a change of state?
Does temperature change during a change of state?
No, temperature remains constant
What is specific latent heat of fusion?
What is specific latent heat of fusion?
Energy needed to melt or freeze a substance
What is specific latent heat of vaporisation?
What is specific latent heat of vaporisation?
Energy needed to boil or condense a substance
Formula for energy during a change of state
Formula for energy during a change of state
What does represent in ?
What does represent in ?
Energy for a change of state
What does represent in ?
What does represent in ?
Mass
What does represent in ?
What does represent in ?
Specific latent heat
Unit of energy () in state change formula
Unit of energy () in state change formula
Joules (J)
Unit of mass () in state change formula
Unit of mass () in state change formula
Kilograms (kg)
Unit of specific latent heat ()
Unit of specific latent heat ()
Joules per kilogram (J/kg)