Specific Latent Heat | GCSE Physics Practice
Specific Latent Heat is the energy needed to change the state of 1kg of a substance.
Why does temperature stay constant during melting?
What is Specific Latent Heat | Practice?
"The energy required to change the state of a substance without changing its temperature."
What is the formula for density?
Why does a crisp packet puff up when taken on an airplane flight?
Calculate the pressure at a depth of 2m in water (density = 1000 kg/m³, g = 9.8 N/kg).
Specific heat capacity is the energy needed to raise 1kg of a substance by ____.
State Change Energy
Energy = mass x specific latent heat (E = mL).
Latent heat of fusion: Change between solid and liquid.
Latent heat of vaporisation: Change between liquid and gas.
The temperature stays constant during a change of state.
Common Error: Using the SHC formula during a state change. If the temperature isn't changing, use E=mL, not E=mcΔT!
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