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Which factor affects drying more-temp or rel humidity?
Temperature has a greater impact on drying than relative humidity. Higher temperatures increase the rate of evaporation, speeding up the drying process. Lower relative humidity can also help by providing a greater difference in vapor pressure, aiding in moisture removal.
Relationship between temperature and relative humidity?
If the absolute humidity remains constant while the temperature rises, the relative humidity will decrease (and vice versa). This is because the air's capacity to hold water increases as the temperature increases so the constant amount of water represents a smaller and smaller percentage of the maximum amount the air can hold. A: As air temperature goes up, the maximum amount of water vapor that it can hold goes up. Thus if the water content stays constant, the the humidity goes down. If the humidity stays constant, then the water vapor content goes up.
How do you calculate relative humidity from actual humidity?
Answeractuall humidity is given as the amount of water. use a table stating how much water the air can hold at the given temp, this is your 100% humidity. now calculate howw much you got and that would be relative humidityAnswer:To calculate relative humidity you need a wet bulb and a dry bulb thermometer and a psychrometric chart (a graph of the physical properties of moist air at a constant pressure). The chart graphically expresses how various properties relate to each other.Using an ordinary thermometer you read the dry bulb temperature(DBT). You will locate this temperature on the x-axis of the chart.Next you will determine the wet bulb temperature (WBT) from a thermometer who's bulb is covered with a wet wad of cotton and typically waved in the air until the temperature goes to its minimum. This works because dry air evaporates water and evaporation cools the wad. The temperature it reaches is related to the air's humidity. This value goes on the curved line at the top of the chart.The relative humidity (RH) is read off the chart from the intersection of the lines from these two points.
What relationship would you expect to find between the air temp and dew point temp at ground level if the area is covered by fog?
When an area is covered by fog, the air temperature and dew point temperature are typically very close to each other, often within a few degrees. This is because fog forms when the air is saturated with moisture, leading to high relative humidity. As a result, the air temperature approaches the dew point temperature, indicating that the air is nearly at its maximum capacity to hold moisture. Thus, you would expect to find a small difference between the two temperatures.
Wet bulb temp is really what temp outside?
Typically wet bulbs are used to give a heat-index or what it "feels like" outside. Because humans cool themselves by sweating, wet bulbs attempt to factor in humidity and wind speed to approximate the effective temperature while sweating. The wet bulb temperature is also used, together with the dry bulb temperature, to determine the relative humidity. If you know the relative humidity, you can calculate the difference with an equation given at: http:/en.wikipedia.org/wiki/Heat_index
What happens to relative humidity if the amount of water vapor in the air stays the same and temp increases?
The relative humidity will decrease.
Is it possible to have humidity greater than 100 percent?
When the air temp drops to the dew point that is 100% relative humidity - the air is saturated and condensation willf form. In general, the air temp cannot drop below the dew point so humidities greater than 100% do not occur.
What is the maximum ambient temp and humidity in Saudi Arabia?
humidity-95% temp-53c
What happens to the humidity of air as it is warmed or cooled?
The amount of water win the air will not change but the amount of water the air will hold rises as temp rises. Enter condensation.
Which factor affects drying more-temp or rel humidity?
Temperature has a greater impact on drying than relative humidity. Higher temperatures increase the rate of evaporation, speeding up the drying process. Lower relative humidity can also help by providing a greater difference in vapor pressure, aiding in moisture removal.
How does temperature affect humidity?
Temperature does have a direct effect on relative humidity. ( just to make the water vapor move faster when war and slower when cool). As temperature goes up, the ability of the air to hold more gas goes up, so relative humidity goes down (unless more water vapor is being added). very good answer if you don't trust it. i got an A on a take home test with this answer Temperature affects humidity when they take place in the Dew point when water vapour changes to liquid. At this temperature humidity is high. The higher the temp, the more water vapor can be carried in air. Thus if you heat air (as is done in the winter) the relative humidity drops ... the air seems dryer even though the total amount of water vapor is unchanged.
Relationship between temperature and relative humidity?
If the absolute humidity remains constant while the temperature rises, the relative humidity will decrease (and vice versa). This is because the air's capacity to hold water increases as the temperature increases so the constant amount of water represents a smaller and smaller percentage of the maximum amount the air can hold. A: As air temperature goes up, the maximum amount of water vapor that it can hold goes up. Thus if the water content stays constant, the the humidity goes down. If the humidity stays constant, then the water vapor content goes up.
Why 75 percent relative humidity at 89F the same as 75 percent Humidity at 25f?
Relative humidity measures the amount of water vapor present in the air compared to the maximum amount the air can hold at a given temperature. So, 75% relative humidity means the air is holding 75% of the maximum water vapor it can at the specific temperature. The actual amount of water vapor in the air will be different at 89°F and 25°F, but the relative humidity percentage indicates they both have the same degree of moisture saturation in relation to their respective temperature.
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.
How do you calculate relative humidity from actual humidity?
Answeractuall humidity is given as the amount of water. use a table stating how much water the air can hold at the given temp, this is your 100% humidity. now calculate howw much you got and that would be relative humidityAnswer:To calculate relative humidity you need a wet bulb and a dry bulb thermometer and a psychrometric chart (a graph of the physical properties of moist air at a constant pressure). The chart graphically expresses how various properties relate to each other.Using an ordinary thermometer you read the dry bulb temperature(DBT). You will locate this temperature on the x-axis of the chart.Next you will determine the wet bulb temperature (WBT) from a thermometer who's bulb is covered with a wet wad of cotton and typically waved in the air until the temperature goes to its minimum. This works because dry air evaporates water and evaporation cools the wad. The temperature it reaches is related to the air's humidity. This value goes on the curved line at the top of the chart.The relative humidity (RH) is read off the chart from the intersection of the lines from these two points.
On a cold winter day the air temperature is 2C and the wet-bulb temperature is -1C What is the relative humidity at this location?
51%.... open to the Relative Humidity chart in the reference tables. the wet bulb temperature is -1C and the dry bulb temp. is 2C, making a difference of 3C. On RH chart, go down to 3C column (difference between the Wet bulb and dry bulb) until it intersects the dry bulb 2C. At this intersection is 51%
Does humidity change with altitude?
Humidity is not directly affected by altitude. However, humidity is affected by air density and temperature. At high altitudes, the air is usually much thinner (lower pressure) and often the temperature is lower. At low temperatures and low pressures, air cannot hold as much water. Thus the humidity is necessarily low when the air is thin and cold. At high temperatures and high pressures, air can hold much more water. However, air that is hot and thick doesn't necessarily have a high humidity; but it does have the potential to hold more water.
