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Latent heat of water is the heat required to change its state at a particular temperature BECAUSE of the pressure at which the water is at at the point of fusion or evaporation.
The latent heat is not affected by temperature (in fact there is no temperature change during absorption of latent heat) it is affected by the pressure acting on a substance. As the pressure increases, the latent heat (of evaporation) decreases, consequently with the change in pressure there is also a different temperature at which the evaporation takes effect, higher pressure, higher temperature at the evaporation point.
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Is specific latent heat of ice is same for water or not?
The specific latent heat of ice and water is not the same. The specific latent heat of fusion for ice (the heat required to convert ice to water at 0°C) is approximately 334 kJ/kg, while the specific latent heat of vaporization for water (the heat required to convert water to vapor at 100°C) is significantly higher, around 2260 kJ/kg. Thus, the energy required for phase changes differs between ice and water.
How much calories is needed to evaporate water?
latent heat
What is the value of latent heat of vaporization of water?
The latent heat of vaporization of water is approximately 2260 kJ/kg at standard atmospheric pressure and temperature. This is the amount of energy required to change 1 kg of liquid water at its boiling point into steam at the same temperature.
What is the temperature change when 40g of ice is added to 100g of water at room temperature?
To determine the temperature change when 40g of ice is added to 100g of water at room temperature, you must consider the heat transfer involved in melting the ice and warming the resulting water. The heat absorbed by the ice to melt (latent heat of fusion) and then raise its temperature to the final equilibrium temperature will lead to a decrease in the temperature of the warm water. The final temperature will depend on the initial temperature of the water and the specific heat capacity of both water and ice, which typically results in a lower equilibrium temperature than the initial temperature of the water.
When water boils at 212 degree is only absorbing latent heat?
When water boils at 212 degrees Fahrenheit (100 degrees Celsius), it absorbs latent heat, specifically the latent heat of vaporization. This energy is required to break the intermolecular bonds between water molecules, allowing them to transition from the liquid phase to the gas phase. While the temperature remains constant during boiling, the absorbed energy does not increase the water's temperature but facilitates this phase change. Thus, at boiling point, water is indeed primarily absorbing latent heat.
What is the specific latent heat of fusion of mercury?
The specific latent heat of fusion of mercury is about 11.28 kJ/kg. This value represents the amount of energy required to change a unit mass of solid mercury at its melting point to liquid mercury at the same temperature, without changing its temperature.
What is laten heat?
"Latent heat" refers to the heat energy absorbed or released during a change of state without a change in temperature. For example, when ice melts into water, heat is absorbed from the surroundings without a rise in temperature, which is the latent heat of fusion. Similarly, when water vapor condenses into liquid water, heat is released without a decrease in temperature, known as the latent heat of condensation.
What is the difference between specific heat and latent heat, and how do they affect the heat transfer process?
Specific heat refers to the amount of heat required to raise the temperature of a substance by one degree Celsius, while latent heat is the heat absorbed or released during a phase change without a change in temperature. Specific heat affects the temperature change of a substance, while latent heat affects the phase change process. Both specific heat and latent heat play a role in heat transfer processes by determining how much heat is needed to change the temperature or phase of a substance.
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 two factors does a materials specific heat latent depend on?
A material's specific heat and latent heat depend on the type of substance and its phase (solid, liquid, or gas). Specific heat is the amount of heat needed to raise the temperature of 1 kg of the substance by 1°C, while latent heat is the amount of heat absorbed or released during a phase change at a constant temperature.
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.
Is specific latent heat of ice is same for water or not?
The specific latent heat of ice and water is not the same. The specific latent heat of fusion for ice (the heat required to convert ice to water at 0°C) is approximately 334 kJ/kg, while the specific latent heat of vaporization for water (the heat required to convert water to vapor at 100°C) is significantly higher, around 2260 kJ/kg. Thus, the energy required for phase changes differs between ice and water.
Define latent heat of fusion and latent heat of vapourisation?
Latent heat of vapourisation can be define as the rate by which water is heat to vapourise, it has a difference with evaporation because evaporation occurs directly when the water start heatin while vapourisation always start in a specific 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.
When water vapor condenses into a liquid does temperature rise?
Yes. There is latent heat release when vapor condenses.
What is the difference of heat capacity and latent heat?
Specific heat capacity (equation Q=mc��T) is the measure of the energy required in Joules to raise 1kg of a substance by 1.0 K (numerically equivalent to 1 C)Whereas, specific latent heat (equation Q=mL) is the amount of energy needed to change to the state of a substance either from solid to liquid, liquid to gas without changing its temperature.
How much calories is needed to evaporate water?
latent heat
