Let us calculate latent heat by a simple expression: Determine the latent heat of a 10kg substance if the amount of heat for a phase change is 200k.cal.
This is the heat per kilogram needed to make the change between the solid and gas phases, as when dry ice evaporates.
The latent heat of evaporation for water is 2256 kJ/kg at atmospheric pressure and 100oC.
The Formula for Latent Heat: L = \( \frac{Q}{ M} \) Where, Q = amount of heat. The latent heat formula is given by, L = Q / M. Where, Q = amount of heat. Example 1. m is the mass, and L is the latent heat: Here, L takes the place of the.
The amount of heat energy absorbed or released for a phase change is known as latent heat. Here’s the formula for heat transfer during phase changes, where. Latent heat of vaporization of water: That is 2264.705kJ/kg. We denote Individual latent heat by L. The unit of latent heat is \(Jkg^{-1}.\) The value of latent heat is variable. M = mass of the substance. The latent heat of sublimation, Ls.
Formula for Latent Heat The formula for latent heat is: Q = m * L This equation relates the heat Q that must be added or removed for an object of mass m to change phases. This equation states that the heat Q that must be added or removed for an object of mass m to change phases. M = mass of the substance.
The heat required to evaporate 10 kg can be calculated as q = (2256 kJ/kg) (10 kg) = 22560 kJ According to the different phase, it has different names like the heat of condensation, the heat of vaporization etc. Latent heat of fusion of water: That is 334kJ/kg. By using the formula, Given that Mass (M) = 10 kg, Amount of heat (Q) = 200k.cal.