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Pick up the correct statement from the following :
  • a)
    Absolute humidity at a given temperature is equal to weight of moisture present in a unit volume
  • b)
    Relative humidity is the ratio of actual vapour pressure and saturation vapour pressure at the same temperature
  • c)
    Relative humidity is the ratio of the weight of the vapours present per unit volume to the weight of vapours which could be contained at the same temperature when fully saturated
  • d)
    Humidity can be measured by psychrometer
  • e)
    All the above.
Correct answer is option 'E'. Can you explain this answer?
Verified Answer
Pick up the correct statement from the following :a)Absolute humidity ...
-Relative humidity tells us how much water vapor is in the air, compared to how much it could hold at that temperature. It is shown as a percent. For example, a relative humidity of 50 percent means the air is holding one half of the water vapor it can hold.
-Absolute humidity is the measure of water vapor (moisture) in the air, regardless of temperature. It is expressed as grams of moisture per cubic meter of air (g/m3). ... The maximum absolute humidity of cold air at 0�C/32�F is approximately 5g of water vapor – 5g/m3.
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Most Upvoted Answer
Pick up the correct statement from the following :a)Absolute humidity ...
Absolute Humidity:
Absolute humidity refers to the weight of moisture present in a unit volume. It is expressed in grams per cubic meter (g/m³) or grains per cubic foot (gr/ft³). The absolute humidity at a given temperature is the actual amount of water vapor present in the air.

Relative Humidity:
Relative humidity is the ratio of the actual vapor pressure to the saturation vapor pressure at the same temperature, expressed as a percentage. It indicates the amount of moisture present in the air relative to the maximum amount it can hold at that temperature. Relative humidity is an important parameter in weather forecasting, as it affects the comfort level and can influence the formation of clouds and precipitation.

Comparison:
Let's compare the statements provided to determine the correct one:

a) Absolute humidity at a given temperature is equal to the weight of moisture present in a unit volume.
This statement correctly defines absolute humidity as the weight of moisture per unit volume. It is a measure of the actual amount of water vapor in the air.

b) Relative humidity is the ratio of actual vapor pressure and saturation vapor pressure at the same temperature.
This statement accurately describes relative humidity as the ratio of the actual vapor pressure to the saturation vapor pressure at a specific temperature. It provides a measure of how close the air is to saturation.

c) Relative humidity is the ratio of the weight of the vapors present per unit volume to the weight of vapors which could be contained at the same temperature when fully saturated.
This statement is similar to statement b, but it emphasizes the weight of the vapors present per unit volume. It is another way to describe relative humidity.

d) Humidity can be measured by a psychrometer.
This statement is also correct. A psychrometer is a device used to measure humidity by comparing the readings of a wet-bulb thermometer (which measures the cooling effect of evaporation) and a dry-bulb thermometer (which measures the actual air temperature). The difference in readings allows for the calculation of relative humidity.

Conclusion:
All of the statements provided are correct and accurately describe different aspects of humidity. Therefore, the correct answer is option 'E' - All the above.
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