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What is the latent heat of vaporization?
It is the additional amount of heat [measured in (the "big") calories ] required to cause boiling/vaporization of a liquid already at the boiling/vaporization temperature. Heat of vaporization is the amount of heat (540 calories/gram) needed to change a specific amount of liquid (1 gram) at it's boiling point into a gas without changing it's temperature. -Qwasas
How much heat will be required to change 5 lbsof ice at 32degree f into water at 82degree f?
heat of fusion is 333.55 (kJ/kg) rephrasing the question to the metric system: How much heat will be required to change 2.27 Kg of ice at 0 degrees into water at 27 degrees? heat of fusion is 333 * 2.27 = 756 kjoules or 756000 joules (melts the ice) specific heat of water (liquid): cp = 4.185 J/gK (this is given in grams, so we have to convert) or cp = 4185 J/kgK multiplying 4185 * 2.27 * 27 = 256,500 joules total = 256,500 + 756000 = 1012500 joules or 241,800 callories or 960 BTU
How much energy is required to change 34.71 g of liquid water to steam?
The answer will depend on the temperature of the liquid water and the pressure.
What happens to molecules of a liquid when heated?
When you heat the base of a liquid, the particles heat up and rise, as they become less dense. When they reach the top of the container, they cool and sink, as they now become more dense again. When they get to the bottom, the whole process starts again.
How much heat is required to vaporize 43.9 grams of acetone at its boiling point?
molar masse acetone: 58.08 g/mol 43.9g/58.08g/mol =0.75585mol the energy required for vaporization to a gas is... 0.75585molx29.1KJ/mol =21.995KJ
How much heat is required to convert 0.3 of ice at 0 to water at the same temperature?
The heat required to convert ice at 0°C to water at 0°C is known as the latent heat of fusion. For water, this value is 334 J/g. Therefore, to convert 0.3 g of ice to water at the same temperature, the heat required is 0.3 g * 334 J/g = 100.2 Joules.
How much heat must be transferred for 20 g of liquid water at 100 C to become steam is it absorbed or released?
The heat required to convert 20 g of liquid water at 100°C to steam at 100°C is the heat of vaporization of water. This is 2260 J/g. Therefore, the total heat required is 20 g * 2260 J/g = 45200 J. This amount of heat is absorbed by the water as it changes phase from liquid to steam.
How much heat is needed to convert 38.5 g of ice at 0 C to a liquid at 55 C?
To convert ice at 0°C to liquid water at 0°C, 334 J/g of heat is needed (heat of fusion). To raise the temperature of liquid water from 0°C to 55°C, 4.18 J/g°C is required (specific heat capacity of water). The total heat required would be (mass of ice x 334 J) + (mass of ice x 4.18 J/g°C x temperature difference).
What is the measurement of how much heat energy is required for a substance to melt?
The measurement of how much heat energy is required for a substance to melt is called the heat of fusion. It is the amount of energy required to change a substance from a solid to a liquid at its melting point.
If 30.86g of H2O is frozen (from liquid to solid) how much heat energy is required?
No heat (energy) is required to freeze water (from liquid to solid). Freezing RELEASES energy (heat), as it is an exothermic event. If you want to know how much energy is release, you need to know the heat of fusion for water, and then multiply that by the mass of water being frozen.
What is the amount of heat required to change one gram of liquid into a gas without changing it temperature?
The energy required to boil a liquid is dependant on what the liquid is, as every liquid has it's own constant known as a specific heat capacity. This essentially boils down (ha ha) to the strength of the bonds between the molecules, which varies depending on the molecule itself. Water for instance has much stronger intermolecular attractions that, say, liquid nitrogen.
How much heat energy in kilojoules is required to convert 44.0 g of ice at -18.0 C to water at 25.0 C?
7.9
How much heat is required to convert 0.3 kilogram of ice to 0 degree celsius at the same temperature?
question makes no sense.....
How much heat must be removed from steam to change it to a liquid?
The amount of heat that must be removed from steam to change it to a liquid is the latent heat of vaporization of water, which is approximately 2260 kJ/kg at atmospheric pressure. This is the amount of energy required for water to change from a gas to a liquid state at a constant temperature.
How much heat in joules is required to convert 92g of ice at 0.00 degrees Celsius to water vapor at 148 degrees Celsius?
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How much energy would be required to change 24.7 g of ice to liquid water?
The energy required to change ice to liquid water is known as the heat of fusion. For ice to water, the heat of fusion is 334 J/g. Therefore, to change 24.7 g of ice to liquid water, the energy required would be 24.7 g * 334 J/g = 8259.8 J.
Energy required to melt a solid into a liquid?
The energy required to melt a solid into a liquid is known as the heat of fusion. This energy is needed to overcome the intermolecular forces holding the solid together and break down its crystal structure, allowing the particles to move freely in the liquid state. The amount of heat of fusion varies depending on the substance.
