Table of Contents
- 1 What are the different types of latent heat?
- 2 What is latent heat What are its types describe by giving one example of each type?
- 3 What are the two types of specific latent heat?
- 4 What is latent heat in Brainly?
- 5 Why do the specific latent heat of a substance for melting and boiling be different?
- 6 How do you explain evaporation to a child?
- 7 How do you calculate latent heat?
- 8 How does latent heat actually work?
What are the different types of latent heat?
There are three different types of latent heats,
- Latent Heat of Fusion,
- Latent Heat of Vaporization,
- Latent Heat of Sublimation.
How do you describe latent heat?
latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature. 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 latent heat What are its types describe by giving one example of each type?
For example, when a pot of water is kept boiling, the temperature remains at 100 °C (212 °F) until the last drop evaporates, because all the heat being added to the liquid is absorbed as latent heat of vaporization and carried away by the escaping vapour molecules.
What is latent heat describe its type with Example Class 9?
The latent heat of fusion or melting of solid is the quantity of heat in joules required to convert 1 kg of solid to liquid,without any change in temperature. The latent heat of fusion of ice is 3.34 ⨰ 105 /kg. We take some crushed ice in a beaker and suspend a thermometer in it.
What are the two types of specific latent heat?
Each substance has two specific latent heats:
- latent heat of fusion (the amount of energy needed to freeze or melt the substance at its melting point)
- latent heat of vaporisation (the amount of energy needed to evaporate or condense the substance at its boiling point)
What is evaporation describe with example?
Evaporation is defined as the process of a liquid changing into a gas. An example of evaporation is water turning into steam. When this happens, the average kinetic energy of the liquid is lowered, and its temperature decreases.
What is latent heat in Brainly?
Brainly User. Answer: the heat required to convert a solid into a liquid or vapour, or a liquid into a vapour, without change of temperature.
What are the types of latent heat Class 9?
Latent heat is of two types:
- Latent heat of fusion.
- Latent heat of vaporization.
Why do the specific latent heat of a substance for melting and boiling be different?
A solid substance at its melting point has less energy than the same mass of the substance when it is a liquid at the same temperature. To change a solid into a liquid, or a liquid into a gas, requires heat energy. The energy required to change the state of a material is known as the latent heat.
How do we describe evaporation as a process?
evaporation, process by which an element or compound transitions from its liquid state to its gaseous state below the temperature at which it boils; in particular, the process by which liquid water enters the atmosphere as water vapour in the water cycle.
How do you explain evaporation to a child?
Evaporation is a process where liquids change to a gas or vapor. Water changes to a vapor or steam from the energy created when molecules bounce into one another because they’re heated up. Sweat drying from our body is a great example of evaporation.
What is latent heat, and why is it called that?
The heat required to change the phase of a substance without raising its temperature is called latent heat. Literally, the term latent means hidden; therefore, this energy is hidden within the molecules until a phase change occurs. If you’ve paid attention, in the case of water, heat is enough to cause a phase change.
How do you calculate latent heat?
HEAT ABSORBED = MASS (kg) x SPECIFIC HEAT x TEMPERATURE CHANGE To calculate the heat absorbed during a change of state use: HEAT ABSORBED = MASS (kg) x LATENT HEAT For example: Water leaves a hose at 20oC and is converted by the heat from the fire into steam at 300oC.
What is the difference between sensible heat and latent heat?
The main difference between latent heat and sensible heat is that latent heat is defined for a system that undergoes a phase change of matter whereas the sensible heat is defined for a system that has no change in the phase of matter.
How does latent heat actually work?
Latent heat arises from the work required to overcome the forces that hold together atoms or molecules in a material. The regular structure of a crystalline solid is maintained by forces of attraction among its individual atoms, which oscillate slightly about their average positions in the crystal lattice.