What is specific latent heat of vaporization of water?
The specific latent heat of vaporization of water is 540 cal/g or 2260 J/g. The specific heat capacity is defined as the amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius.
What is the specific heat of ice water?
Heat Capacities for Some Select Substances
| Substance | specific heat capacity Cp,s (J/g °C) | molar heat capacity Cp,m (J/mol °C) |
|---|---|---|
| steel | 0.466 | — |
| titanium | 0.523 | 26.06 |
| water (ice, O°C) | 2.09 | 37.66 |
| water | 4.184 | 75.38 |
What is the latent heat of vaporization of ice in J kg?
The latent heat of fusion of ice is defined as the amount of heat required to change 1 g of ice from 0to water at the same temperature. For ice, its value is 3.36 105 J Kg-1 in SI-units or 80cal g-1 in CGS-system.
How do you calculate the heat of vaporization of ice?
Use the formula q = m·ΔHv in which q = heat energy, m = mass, and ΔHv = heat of vaporization.
What is latent heat of vaporization class 9th?
Latent heat of vaporization is the heat consumed or discharged when matter disintegrates, changing stage from fluid to gas stage at a consistent temperature.
How is the specific latent heat of vaporization defined?
Specific latent heat of vaporization of water is defined as the amount of heat required to transform a unit mass of water from the liquid state to the gaseous state without any variation in temperature.
What is latent heat of ice?
Latent heat is the heat required to change the unit mass of substance. The latent heat of ice is 336kJkg−1 .
Do water and ice have the same specific heat?
The specific heat of water at 25 degrees Celsius is 4.186 joules/gram * degree Kelvin. The specific heat capacity of water at -10 degrees Celsius (ice) is 2.05 joules/gram * degree Kelvin.
What is latent heat vaporization?
Latent heat of vaporization is the heat consumed or discharged when matter disintegrates, changing state from fluid to gas state at a consistent temperature. The heat of vaporization of water is the most elevated known.
What is water vaporization?
Heat of vaporization of water That is, water has a high heat of vaporization, the amount of energy needed to change one gram of a liquid substance to a gas at constant temperature. Water’s heat of vaporization is around 540 cal/g at 100 °C, water’s boiling point.
What is latent heat of vaporization for Class 8?
What is the latent heat of vaporization give an example?
Examples of Latent Heat The latent heat of vaporization for water is 22.6 x 10^5 J/kg. This means that 22.6 x 10^5 J of heat energy must be added to turn one kilogram of water from liquid to gas at 100 degrees Celsius. This graph shows how the temperature of water changes with added heat.
What is the specific latent heat of fusion of ice?
The specific latent heat of fusion (when solid change to liquid) of ice is the amount of heat required to change 1 kg of ice to water without a change in temperature. The specific latent heat of fusion of ice is 0.336 MJ per kg.
What is latent heat of melting?
Latent heat is a form of internal or potential energy stored by evaporated or melted water. A total of 334 J of energy are required to melt 1 g of ice at 0°C, which is called the latent heat of melting. At 0°C, liquid water has 334 J g−1 more energy than ice at the same temperature.
What is the specific heat of vaporization of water?
This constant ratio between the heat of vaporization and the mass m v to be vaporized is called specific heat of vaporization or specific enthalpy of vaporization q v: From the experiment, a specific heat of vaporization of around 2500 kJ/kg is finally obtained for water. This means that 2500 kJ of heat is required to vaporize 1 kilogram of water.