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Latent heat is the amount of energy absorbed or released by a substance during a phase change without a change in temperature. For example, when ice melts into water, it absorbs latent heat, and when water freezes into ice, it releases latent heat. This energy is crucial for processes such as melting, freezing, boiling, and condensing, as it facilitates the transition between solid, liquid, and gas states.
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What do you call heat that is added or removed from a substance but does not change the state of the substance sensible heat latent heat super heat or radiation heat?
Sensible heat is the term used to describe heat that is added or removed from a substance without changing its state. It relates to the temperature of the substance and can be measured using a thermometer.
What is the heat that is released when water condenses and changes to liquid form?
The heat released when water condenses and changes to liquid form is called the latent heat of condensation. This heat is released because the water vapor loses energy as it transitions to a liquid state, leading to a release of thermal energy.
What type of energy is absorbed or released when a substance changes phase?
pChanges in bonding arrangements between atoms and molecules result in absorption or release of heat (called latent heat). For example when water freezes, some heat is extracted to the environment, and the temperature does not fall until all is frozen. After that further removal of heat causes the temperature to fall below freezing point.
How do solids and liquids change state?
they change their state by absorbing heat known as latent heat. There is no temperature change in a substance she they change their state because the heat is used to break the intermolecular bonds between the molecule.
What does the heat latent heat of vaporization measure?
The energy required to boil a substance
How are sensible heat and latent heat different in terms of their impact on temperature changes in a substance?
Sensible heat and latent heat are different in how they affect temperature changes in a substance. Sensible heat directly raises or lowers the temperature of a substance when added or removed, while latent heat causes a substance to change its state (such as melting or evaporating) without changing its temperature.
What is the difference between latent heat and specific heat, and how do they affect the temperature changes of a substance?
Latent heat is the energy required to change the state of a substance without changing its temperature, while specific heat is the amount of energy needed to change the temperature of a substance by one degree Celsius. Latent heat affects phase changes (like melting or boiling) while specific heat affects temperature changes. Both play a role in determining how quickly a substance's temperature changes when heat is added or removed.
What is the significance of the negative value of latent heat in a substance?
The negative value of latent heat in a substance indicates that energy is being released when the substance changes its state, such as from a gas to a liquid or from a liquid to a solid. This release of energy is important because it affects the temperature and behavior of the substance during these phase changes.
What do you call heat that is added or removed from a substance but does not change the state of the substance sensible heat latent heat super heat or radiation heat?
Sensible heat is the term used to describe heat that is added or removed from a substance without changing its state. It relates to the temperature of the substance and can be measured using a thermometer.
What is the relationship between specific heat and latent heat in the context of thermal energy transfer?
Specific heat and latent heat are both properties of a substance that determine how it absorbs or releases thermal energy. Specific heat refers to the amount of heat required to raise the temperature of a substance by a certain amount, while latent heat is the amount of heat needed to change the state of a substance without a change in temperature. In thermal energy transfer, specific heat affects the temperature change of a substance, while latent heat is involved in phase changes such as melting or boiling.
What is the difference between latent heat of fusion and latent heat of vapourization?
the heat which is absorbed by a substance for changing solid into liquid state by keeping temperature constant is called latent heat of fusion while the heat which is evolved during phase change of liquid to vapour state at constant temperature is called latent heat of vapourization
How does pressure affect sensible and latent heat?
Increasing pressure typically increases the boiling point of a substance, which affects the amount of latent heat required to change the state of the substance from liquid to gas. Sensible heat, on the other hand, is not significantly affected by pressure changes, as it primarily involves changing the temperature of a substance without a phase change.
Which heat changes the state of a substance without changing its temperature?
Latent heat is the heat that causes a change in the state of a substance without changing its temperature. This process involves absorbing or releasing energy to break or form intermolecular forces between particles.
What are two changes of state for water that cause latent heat to be released?
When water vapor condenses into liquid water, latent heat is released. Similarly, when liquid water freezes into ice, latent heat is also released. These changes of state involve the release of latent heat because energy is being released as the water molecules transition to a lower energy state.
What is the difference in specefic heat and latent heat?
Specific heat is the heat energy in joules required to rise the temperature of one kg of substance through one kelvin without a change in its state. But latent heat is the heat required to change the state of one kg of substance without change in temperature.
Can a sensible heat and latent heat transfers be read with a thermometer?
yes
Latent heat is the energy required for 1 kg of a substance to change?
Latent heat is the energy required for 1 kg of a substance to change ___________. phase
