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Q: What variable controls the saturation vapor pressure?
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How much relative humidity would decrease when temperature rises?

Relative humidity is a ratio between the partial pressure of water vapor and the saturation pressure of water vapor at the current temperature and pressure. If the temperature and pressure change, then the relative humidity will change also. You are correct that higher temperatures allow the atmosphere to hold more water. That means that the saturation pressure of water vapor has increased while the current vapor pressure has remained the same, causing the relative humidity to drop. We think of humidity as how hot and sticky it is outside. The closer the water vapor pressure is to its saturation point, the more hot and sticky we feel. We associate humidity with heat since that is when we are uncomfortable, but rain is caused by the relative humidity rising to 100% because the humid air cooled to the point that the saturation pressure dipped below the current vapor pressure (or other pressure changes, or a combination of both). You can learn more at the link below. I hope this helps.


Is refrigerant leaving a compressor in a cars air conditioning system high pressure vapor high pressure liquid or low pressure vapor?

high pressure vapor


What happens to vapor pressure if sugar is added to a solution?

When you add a teaspoon of honey to water with vapor pressure, it will reduce the vapor pressure. The sugar in the honey leads to the pressure going down.


What is a hydrated crystal that has a water vapor pressure greater than the vapor pressure of air is called?

A delisquiscent.


What is difference between vapor pressure and vapor density?

I do not now

Related questions

Saturation Vapor Pressure is dependent on what variable?

Temperature


What is the formula to measure relative humidity?

HR= actual vapor pressure/ saturation vapor pressure


When the air temperature increases the saturation vapor pressure?

It also increases.


Would vapor pressure be higher in warm air or cold air?

SATURATION vapor pressure would be higher in warm air. Vapor pressure indicates the amount of moisture actually in the air, and we don't actually know that.


How much relative humidity would decrease when temperature rises?

Relative humidity is a ratio between the partial pressure of water vapor and the saturation pressure of water vapor at the current temperature and pressure. If the temperature and pressure change, then the relative humidity will change also. You are correct that higher temperatures allow the atmosphere to hold more water. That means that the saturation pressure of water vapor has increased while the current vapor pressure has remained the same, causing the relative humidity to drop. We think of humidity as how hot and sticky it is outside. The closer the water vapor pressure is to its saturation point, the more hot and sticky we feel. We associate humidity with heat since that is when we are uncomfortable, but rain is caused by the relative humidity rising to 100% because the humid air cooled to the point that the saturation pressure dipped below the current vapor pressure (or other pressure changes, or a combination of both). You can learn more at the link below. I hope this helps.


What happens when temperature and dew point are equal?

This is the point at which saturation occurs. This is also signifies 100% relative humidity. If you want to find out how close it is to reaching saturation, all you have to do is find actual vapor pressure (found by temp.), and saturation vapor pressure(found by dewpoint). You can look online for conversion charts. Once you find them, plug them into this equation: actual vapor pressure/saturation vapor pressure x 100%. Your answer should be a percentage. If it's around 60-80 percent, then you know it's cold, and there is high humidity; thus, saturation is likely to occur. If it's around 10-30 percent, then you know the humidity is low and saturation is not likely occur. Warm weather= low humidity Cold weather= high humidity.


What happens when air is humid?

Humidity (relative) is the amount of water vapor in the air, expressed as a percentage of the maximum amount that the air could hold at the given temperature; the ratio of the actual water vapor pressure to the saturation vapor pressure. So pretty much the air is moist and heavy.


What happens to a refrigerant when it is above the saturation temperature?

it remains in a vapor state


What is supper heat?

saturation vapor that cal supper heat


What is the amount of water vapor in the air compared to to the amount of water vapor needed for saturation at a certain temperature?

Relative humidity.


Is the amount of water vapor in the air compared to the amount of water vapor needed for saturation at a certain temperature.?

Relative humidity.


What Is the amount of water vapor in the air compared to the amount of water vapor needed for saturation at a certain temperature.?

Relative humidity.