Specific latent heat

What is Specific latent heat?

Specific latent heat is the energy needed to change the state of a substance. Latent heat is the energy absorbed or released by a substance during a change in its physical state. The latent heat is normally shown as the amount of heat energy in joules per Kg mass of the substance undergoing the change of state.

Specific latent heat equation

To calculate Specific latent heat we write the equation like this.

$E = {\text{m} \text{L}}$

Specific latent heat demo

In this tutorial you will learn how to calculate the energy needed for different substances to change their state of matter.

Chilled practice question

The specific latent heat of water for melting is 334000 J/Kg. Find the energy needed to melt a 30 Kg block of ice.

Frozen practice question

What is the specific latent heat of a material if 2 Kg of it gives out 95.5 KJ when it melts.

Science in context

Specific latent heat is the energy needed to change the state of a substance.

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