What is the formula for latent heat?
The specific latent heat (L) of a material… is a measure of the heat energy (Q) per mass (m) released or absorbed during a phase change. is defined through the formula Q = mL. is often just called the “latent heat” of the material.
What is unit of latent heat?
The latent heat is normally expressed as the amount of heat (in units of joules or calories) per mole or unit mass of the substance undergoing a change of state.
What is specific heat and latent heat?
Specific heat: = energy required to change a unit mass of a material by 1°C. Units: energy per unit mass per degree. Latent heat = energy required to change the state (gas, liquid, solid) of a unit mass of material. Units: energy per unit mass.
What are three types of latent heat?
There are three phases of the substance: solid, liquid and gaseous.
What are the types of latent heat?
Two common forms of latent heat are latent heat of fusion (melting) and latent heat of vaporization (boiling). These names describe the direction of energy flow when changing from one phase to the next: from solid to liquid, and liquid to gas.
What is difference between sensible heat and latent heat?
Latent and sensible heat are types of energy released or absorbed in the atmosphere. Latent heat is related to changes in phase between liquids, gases, and solids. Sensible heat is related to changes in temperature of a gas or object with no change in phase.
Why is latent heat important?
That is latent heat. When the molecules return to a liquid state the latent heat is released as sensible heat (heat you can feel basically). It is important in the atmosphere because it is the primary factor involved in the formation of convective clouds and the stability/instability of the atmosphere.
Is condensation latent heat?
The condensation is the opposite process of evaporation. Latent heat of condensation is energy released when water vapor condenses to form liquid droplets. The latent heat of condensation is defined as the heat released when one mole of the substance condenses.
What is the difference between latent heat and heat capacity?
Specific heat is the amount of heat required to raise the temperature of a substance a certain amount. Latent heat is the amount of heat released during a change of state, i.e. the boiling of water or the melting of ice.
Why is latent heat hidden?
Latent heat is sometimes called the ‘hidden’ or ‘stored’ heat used to change the state of a substance without a change in temperature. The temperature does not increase as the water (liquid) starts to evaporate and become water vapour (a gas).