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Specific Heat mans the amount of heat required to raise the temperature of a substance by a certain amount (or of course the heat it releases in cooling the same amount). It can be expressed in various units, depending which is suitable for the case being studied. Thus scientists usually use grams weight, degrees Celsius, and calories for the heat. So specific heat would be expressed as calories per gram per degree Celsius. Engineers probably prefer larger units, ie kilograms and kilocalories, or in the USA they may still use the traditional old British units, ie pounds weight and degrees Fahrenheit, and heat may be in BTU. Specific heat is relative to water, ie one calorie is the heat to raise one gram of water one degree Celsius, and one BTU similarly, one pound of water one degree Fahrenheit.
Latent heat is quite a different matter. This is the heat released in a Change of State, ie steam to water for example, or in reverse the heat required to evaporate water which is already at boiling point into water vapour. It also appears in many other substances during a change of state, for example when liquid wax solidifies, the latent heat is released. In quantity, this would be expressed as so many calories per gram, or whatever combination of units is preferred.
What else can I help you with?
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.
Was Joseph Black famous?
yes he was known for Latent heat, specific heat, and the discovery of carbon dioxide
What is the electrical method to determine the specific latent heat of vaporisation?
One way to determine the specific latent heat of vaporization using electricity is to pass a known electric current through a resistor immersed in a liquid until it vaporizes. By measuring the amount of energy supplied through the electric current and the resulting increase in temperature of the liquid, the specific latent heat of vaporization can be calculated using the formula Q = I^2Rt, where Q is the energy supplied, I is the current, R is the resistance of the resistor, and t is the time taken to vaporize the liquid.
How does specific latent heat of water vary with temperature?
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.
What are the applications of latent heat of fusion and latent heat of vapourisation?
The latent heat of fusion is the amount of heat required to change a substance from solid to liquid at its melting point, while the latent heat of vaporization is the amount of heat required to change a substance from liquid to gas at its boiling point. These concepts are important in processes like melting and boiling of substances, refrigeration, and even in weather phenomena like cloud formation and rain.
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 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.
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.
What unit is specific latent heat measured in?
The unit for specific latent heat is J Kg-1(Joules per Kilogram)
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 are the factors that affect specific latent heat of fusion of a substance?
The amount of energy needed to change the "state of matter" is termed as "latent heat". This is not same for vapourisation (liquid to vapour) or for fusion (solid to liquid). For example, latent of fusion is 79.7 cal whereas latent heat for vapourisation is 541 calories. The latent depends on how closely the atoms and molecules in the matter are closely packed.
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.
Can you measure Latent heat with a thermometer?
No, latent heat cannot be measured directly with a thermometer. Latent heat is the energy absorbed or released during a phase change (e.g. melting, boiling) without a change in temperature. The amount of latent heat can be calculated using specific equations and constants for each substance.
What two things does the specific latent heat of a material depend on?
The specific latent heat of a material depends on the substance being considered and the phase change involved, such as condensation or freezing.
What is the specific latent heat of fusion for a substance that takes 550 kJ to melt 14 kg at 262 K?
The specific latent heat of fusion can be calculated by dividing the energy required to melt the substance by the mass of the substance. In this case, the specific latent heat of fusion would be (550 kJ) / (14 kg) = 39.29 kJ/kg.
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.
Was Joseph Black famous?
yes he was known for Latent heat, specific heat, and the discovery of carbon dioxide
