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Consider the following statements.
  1. Warmer air can hold more moisture than cooler air.
  2. A psychrometer is a device for measuring air humidity.
  3. A wet-bulb temperature is the lowest temperature a surface reach when water evaporates from it.
How many of the above statements is/are correct?
  • a)
    Only one 
  • b)
    Only two 
  • c)
    All three 
  • d)
    None
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Consider the following statements. Warmer air can hold more moisture t...
Warmer air can hold more moisture than cooler air.
A more direct way to understand the implications of the relative humidity for your wellbeing is in the form of the wet-bulb temperature (a.k.a. the adiabatic saturation temperature). It is the lowest temperature a surface – like your skin – can reach when water evaporates from it. The wet-bulb temperature is equal to the dry-bulb temperature when the relative humidity is 100%.
A wet-bulb temperature in an environment of 32-35º C or higher can be quickly lethal, even if you are not doing any physical activity or are in the shade. (At least one study has shown that even a wet-bulb temperature of more than 29º C can be dangerous.)
A psychrometer is a device for measuring air humidity.
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Most Upvoted Answer
Consider the following statements. Warmer air can hold more moisture t...
Warmer air can hold more moisture than cooler air:
This statement is correct. Warmer air has a higher capacity to hold moisture compared to cooler air. This is because warm air molecules are more energetic and can therefore accommodate a larger amount of water vapor.

A psychrometer is a device for measuring air humidity:
This statement is correct. A psychrometer is a device used to measure relative humidity in the air. It consists of two thermometers - a dry-bulb thermometer and a wet-bulb thermometer. The dry-bulb thermometer measures the ambient air temperature, while the wet-bulb thermometer has its bulb covered with a wet cloth or wick. The evaporation of water from the wet-bulb thermometer causes its temperature to drop, providing a measure of the humidity in the air.

A wet-bulb temperature is the lowest temperature a surface reaches when water evaporates from it:
This statement is correct. The wet-bulb temperature is the lowest temperature that a surface can reach when water evaporates from it. It is determined by the rate of evaporation, which is influenced by factors such as air temperature, humidity, and air movement. The wet-bulb temperature is often used in meteorology and climatology to assess the potential for evaporation and heat stress.

Conclusion:
All three statements are correct. Warmer air has a higher moisture-holding capacity, a psychrometer is a device used to measure air humidity, and the wet-bulb temperature represents the lowest temperature a surface can reach when water evaporates from it.
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Consider the following statements. Warmer air can hold more moisture than cooler air. A psychrometer is a device for measuring air humidity. A wet-bulb temperature is the lowest temperature a surface reach when water evaporates from it.How many of the above statements is/are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'C'. Can you explain this answer?
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