Enter the mass of an object and the specific latent heat of that object to calculate the latent heat in Joules.

## Latent Heat Formula

The following equation can be used to calculate the latent heat of any object or material.

Q = m * L

- Where Q is the latent heat (Joules)
- m is the mass of the object (kg)
- L is the specific latent heat.

Just as with specific heat, latent heat can be calculated through the mass and a constant that measure the objects ability to absorb heat. In the cases of latent heat, this is only the objects ability to absorb heat during phase transitions.

## Latent Heat Definition

In other words, when i substance such as water is boiled, the temperature of the water does not change when it’s undergoing the phase change to a gas. Only when the water is in a gaseous state does the temperature start to increase. The energy that is dumped into the water during this time is considered to be the latent heat.

## How to calculate latent heat?

How to calculate latent heat?

**First, determine the mass of the substance.**Measure or calculate the total mass of the substance or object.

**Next, determine the specific latent heat.**Measure or lookup the specific latent heat of the material.

**Finally, calculate the latent heat.**Using the formula above calculate the latent heat.

## FAQ

**What is latent heat?**

Latent heat is the total energy required to change the phase of a substance. For example, changing water from a liquid to a gas via boiling.

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