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The difference of wet bulb temperature and adiabatic saturation temperature of unsaturated mixture of any system is
- a)+ve
- b)-ve
- c)zero
- d)none of these
Correct answer is option 'A'. Can you explain this answer?
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The difference of wet bulb temperature and adiabatic saturation temper...
-The difference of wet bulb temperature and adiabatic saturation temperature of unsaturated mixture of any system is
+ve-Let us say wet bulb temperature as WBT and adiabatic saturation temperature as AST thereafter and air-water system is used for example.
-These both are the temperatures when the rate of latent heat of vaporisation extracted from bulk water becomes equal to the rate of sensible heat transfer from air to water.
-WBT is reached when there is large amount of air and small amount of water while AST is reached when small amount of air and larger amount of water.
-When WBT is reached the temperatures of water and air are different (temperature of water lower than that of air) while when AST is reached temperatures of water and air leaving are same.
-AST is either equal to or lower than WBT (eqaul in air-water system nd unequal in other liquid-gas systems).
-When AST is reached air becomes saturated with water while when WBT is reached there is considerably no change in the humidity of air.
-AST is reached in adiabatic saturator while WBT is reached in wet wick thermometer.
-AST requires adiabatic conditions that heat is exchanged only between the passing air and water inside the adiabatic saturator while WBT requires heat exchange with surrounding air in open.
-AST is the maximun limit upto which temperature of water can be lowered by evaporation at any given dry bulb temperature and pressure in adiabatic conditions while WBT is the maximum limit upto which the temperature of water can be lowered by evaporation in open.
-AST is the equilibrium Temperature while the WBT is the steady state temperature.
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The difference of wet bulb temperature and adiabatic saturation temper...
Difference between Wet Bulb Temperature and Adiabatic Saturation Temperature
Wet bulb temperature and adiabatic saturation temperature are two important parameters used in the study of psychrometrics, which deals with the properties of moist air. The difference between these two temperatures can provide important information about the state of the air.
Wet Bulb Temperature
Wet bulb temperature is the temperature that a thermometer with a wet wick will indicate when it is exposed to moving air. The wet wick cools the thermometer by evaporative cooling, and the temperature that is measured is a measure of the cooling effect of evaporation.
Adiabatic Saturation Temperature
Adiabatic saturation temperature is the temperature that a thermometer will indicate when it is exposed to a mixture of air and water that is in thermal equilibrium. This temperature is reached when the air is brought into contact with water that is at the same temperature as the air, and the mixture is allowed to reach a state of equilibrium.
Difference between Wet Bulb Temperature and Adiabatic Saturation Temperature
The difference between wet bulb temperature and adiabatic saturation temperature is a measure of the amount of moisture that is present in the air. This difference is also known as the wet bulb depression, and it can be used to determine the relative humidity of the air.
If the wet bulb temperature is lower than the adiabatic saturation temperature, then the air is unsaturated, meaning that it can hold more moisture. The wet bulb depression will be a positive number, and the greater the difference, the drier the air.
If the wet bulb temperature is the same as the adiabatic saturation temperature, then the air is saturated, meaning that it cannot hold any more moisture. The wet bulb depression will be zero.
If the wet bulb temperature is higher than the adiabatic saturation temperature, then the air is supersaturated, meaning that it is holding more moisture than it can normally hold. The wet bulb depression will be a negative number, and the greater the difference, the more humid the air.
Conclusion
In summary, the difference between wet bulb temperature and adiabatic saturation temperature is an important parameter in the study of psychrometrics. It can be used to determine the relative humidity of the air and the amount of moisture that is present in the air.
Wet bulb temperature and adiabatic saturation temperature are two important parameters used in the study of psychrometrics, which deals with the properties of moist air. The difference between these two temperatures can provide important information about the state of the air.
Wet Bulb Temperature
Wet bulb temperature is the temperature that a thermometer with a wet wick will indicate when it is exposed to moving air. The wet wick cools the thermometer by evaporative cooling, and the temperature that is measured is a measure of the cooling effect of evaporation.
Adiabatic Saturation Temperature
Adiabatic saturation temperature is the temperature that a thermometer will indicate when it is exposed to a mixture of air and water that is in thermal equilibrium. This temperature is reached when the air is brought into contact with water that is at the same temperature as the air, and the mixture is allowed to reach a state of equilibrium.
Difference between Wet Bulb Temperature and Adiabatic Saturation Temperature
The difference between wet bulb temperature and adiabatic saturation temperature is a measure of the amount of moisture that is present in the air. This difference is also known as the wet bulb depression, and it can be used to determine the relative humidity of the air.
If the wet bulb temperature is lower than the adiabatic saturation temperature, then the air is unsaturated, meaning that it can hold more moisture. The wet bulb depression will be a positive number, and the greater the difference, the drier the air.
If the wet bulb temperature is the same as the adiabatic saturation temperature, then the air is saturated, meaning that it cannot hold any more moisture. The wet bulb depression will be zero.
If the wet bulb temperature is higher than the adiabatic saturation temperature, then the air is supersaturated, meaning that it is holding more moisture than it can normally hold. The wet bulb depression will be a negative number, and the greater the difference, the more humid the air.
Conclusion
In summary, the difference between wet bulb temperature and adiabatic saturation temperature is an important parameter in the study of psychrometrics. It can be used to determine the relative humidity of the air and the amount of moisture that is present in the air.
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The difference of wet bulb temperature and adiabatic saturation temperature of unsaturated mixture of any system isa)+veb)-vec)zerod)none of theseCorrect answer is option 'A'. Can you explain this answer?
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