What is the formula for latent heat of condensation?
Ans: Specific latent heat is denoted by L and it is a measure of the heat energy (Q) per mass (m) released or absorbed during a phase change. It can be defined through the formula: Q=mL and its SI unit is Joule per kilogram (J/kg).
How do you calculate heat of condensation?
Heat of Vaporization and Condensation
- Condensation is the exact opposite of vaporization.
- The amount of heat released when 1 mol of vapor condenses is called its molar heat of condensation (DHcond).
- ΔHvap = – ΔHcond.
- H2O(g) –> H2O(l) ΔHcond = – 40.7 kJ/mol.
What is the equation for latent heat of fusion?
The formula of specific latent heat of fusion is given by: Q = mL, which is the required specific latent heat of the fusion equation.
What is the latent heat of condensation of 1g Vapour?
Heat of Vaporization/Condensation For vaporization, it is the quantity of heat (540 cal g−1) needed to convert 1 g of water to 1 g of water vapor. The same amount of heat is exchanged or released in the phase shift during the condensation of 1 g water vapor to 1 g of water.
How do you calculate latent heat of steam?
8 Factor of evaporation. H = Total heat in 1 kg of steam at working pressure above 0°C taken from steam tables in kJ/kg. T = Heat in feedwater (kJ/kg). 2256 = the latent heat of steam at atmospheric conditions.
How do you calculate latent heat?
Or, L = [M1 L2 T-2] × [M1 L0 T0]-1 = [M0 L2 T-2]. Therefore, latent heat is dimensionally represented as [M0 L2 T-2].
What does the latent heat of condensation mean?
Latent heat of condensation is energy released when water vapor condenses to form liquid droplets. An identical amount of calories (about 600 cal/g) is released in this process as was needed in the evaporation process.
What is latent heat of condensation in geography?
Much cooling of the air is required in hot arid regions before dew point is reached. On the other hand, very little cooling causes condensation in humid regions. The heat released at the time of condensation is called latent heat of condensation. Home ›› Climatology ›› Condensation ›› Geography ›› Humidity.
What is the latent heat of fusion and vaporization?
Latent heat of fusion is the amount of heat that a solid substance requires to change its phase from solid phase to liquid phase at a constant temperature while Latent heat of vaporization is the amount of heat that a liquid substance requires to change its phase from the liquid phase to vapor phase at a constant …
What is latent heat of fusion and vaporization?
What is the latent heat of vaporization of ice?
Similarly, while ice melts, it remains at 0 °C (32 °F), and the liquid water that is formed with the latent heat of fusion is also at 0 °C. The heat of fusion for water at 0 °C is approximately 334 joules (79.7 calories) per gram, and the heat of vaporization at 100 °C is about 2,230 joules (533 calories) per gram.
What is the specific latent heat equation?
Here is the formula: Eh = m x l. Eh means energy, equals m for mass, times l. l is the specific latent heat of fusion for that material. So the formula tells us how much heat energy is needed to go into a material to change it from a solid to a melted liquid.
What is the cause of latent heat?
The heat that causes these changes is called latent heat. During the cooling cycling, condensation forms within the unit due to the removal of latent heat from the air.
Why is latent heat referred to as hidden heat?
So the substance was gaining energy but it was “hidden” from observers because the temperature was not rising. That is why they called the heat they transferred to the substance during phase changes “latent heat” (i.e. hidden heat).
What process releases latent heat energy?
Latent heat is thermal energy released or absorbed, by a body or a thermodynamic system, during a constant-temperature process — usually a first-order phase transition.
What is the unit of latent heat of fusion?
Overview. The latent heat of fusion is the enthalpy change of any amount of substance when it melts. When the heat of fusion is referenced to a unit of mass, it is usually called the specific heat of fusion, while the molar heat of fusion refers to the enthalpy change per amount of substance in moles .