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What does 25 percent realtive humidty in the air mean?
It means that the air at the current temperature has 25% of the maximum moisture available at that temperature before becoming saturated. Relative hunmidity is relative to the amount of moisture the air can hold at temperature. It is relative because at higher temperature the air can hold more moisture. So at say 90F and 25% relative humidity there is much more moisture than at 70F and 25% relative humidity.
What does it mean when humidity is 100 percent?
This is called relative humidity. It is the ratio between the actual humidity, and the humidity for saturated air - that is, the maximum amount of water air can hold. This saturation point is dependent on temperature.
If the air temperature is 75 degrees Fahrenheit what is the temperature on the Kelvin scale?
297 Kelvins
Why is the term a cubic meter of air unsatisfactory?
Because it doesn't say neither the temperature, the pressure or the humidity of the air. You need to know both the temperature, the pressure and the humidity of the air to say anything about the mass of one cubic meter of air.
How long does it take for cold water to freeze?
It all depends on the temperature of the air that it is in contact with, the air has to be at least 0 degrees Celsius so you cannot work out how quickly it will freeze without knowing the air temperature ;)
What is insolation temperature Lag?
It is the time delay between a maximum or minimum insolation and maximum or minimum air temperature
Is there a minimum temperature people can work in?
The minimum temperature in which people can work depends on how warmly dressed they are and what the humidity and air movement conditions are.
What instrument measures changes in temperature?
Temperatures are measured by instruments called thermometers.The instrument usually used to measure air temperature is the maximum-minimum thermometer. It consists of a U shaped tube with bulbs at each end and mercury at the bottom. Air heats or cools the bulbs causing the air inside to expand or contract, therefore pushing or pulling the mercury upwards or downwards.There are 3 types of thermometer: minimum thermometer, maximum thermometer,and the "Six's thermometer" -- these record the temperatures over a period of time.it says in my book that a thermometer measures air temperature
What are the kinds of thermometer used to measure air temperature?
The instrument usually used to measure air temperature is the maximum minimum thermometer. It consists of a U shaped tube with bulbs at each end and mercury at the bottom. Air heats or cools the bulbs causing the air inside to expand or contract, therefore pushing or pulling the mercury upwards or downwards.
The rating T130 on a transformers label?
I think this refers to the continuous temperature rating, which is the maximum rated winding temperature allowed for a maximum ambient air temperature of 40deg C.
What color has the maximum and minimum speed in air?
Red color will travel fastest in air and Blue color will travel slowest
Which planet has the coldest air?
In our solar system, the planet with the lowest air temperature is Uranus, with a minimum temperature of about 49 K and a mean surface temperature at 1 bar of about 76 K.
What is the vapor present in the air at a given temperature compared to the maximum amount that the air could hold at that temperature is called?
In the context of water vapour, it is "relative humidity".
Air that holds the maximum amount of water at a given temperature is said to be what?
Relative Humidity.
What three things needed to form dew?
High air humidity, low temperature and absence of sunshine during night with minimum air velocity are needed to form dew. These things are very common during autumn and spring seasons causing maximum dew formation.
How is relative humidity is expressed?
As a percentage. It is the water vapor content of the air compared to the normal maximum content at that temperature. (For supercooled air, the humidity is more than 100% for the temperature.)
What is the amount of moisture the air contains compared with the maximum it can be hold at the given temperature?
Relative humidity.
