Latent Heat Calculator
🔥 Thermochemistry & Bonding. Use the Latent heat formula to find heat, mass, latent heat l: pick the value you want, type the others, and the answer updates as you go.
Water: L_vaporisation = 2260 J/g, L_fusion = 334 J/g.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Heat | J |
| Mass | g |
| Latent heat L | J/g |
Worked example
Find the heat when Mass = 100 g, Latent heat L = 2260 J/g.
Using q = mL: Heat = 226000 J.
Frequently asked questions
What is the formula for Latent heat?
q = mL. Water: L_vaporisation = 2260 J/g, L_fusion = 334 J/g.
What do the letters stand for, and what units are used?
Heat in J, Mass in g, Latent heat L in J/g.
How do you calculate heat?
Put the values into q = mL. For example, with Mass = 100 g, Latent heat L = 2260 J/g, heat = 226000 J.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (heat, mass, latent heat l) and fill in the others: it rearranges the formula for you.
