when air is passed over a desiccant material ,temperature of air increases or decreases?? please reply soon!!!
89345
PV=nRT. Standard equation of thermodynamics\n\nPressure * Volumn = constat * Temperator.\n\nA dessicant will remove water from the air, therefore decreases Pressure.  In order for the equation to balance, Temperature will decrease.
799074
How scientific do you want it?\n\nBasically, air circulates the earth.\n\nThis air has different temperatures in different places.\n\nThe different temperatures cause different pressures of air masses.\n\nBecause of this air flows around air masses due to the pressure gradient between different masses.\n\nThis air flow drags air of even higher temperature differences into contact.\n\nDifferent air temperatures meet causing one to rise over the other, as this rising air goes up it cools and causes clouds (These areas where air masses join are the fronts on a weather map).\n\nThese clouds then produce rain.\n\nThat rain changes temperatures, more air masses are drawn into contact, and the cycle repeats.
556156
If it's non heated, it's going to be the temperature of the surrounding air and ground.
558007
Evaporation is a process whereby atoms or molecules in a liquid state (or solid state if the substance sublimes) gain sufficient energy to enter the gaseous state. \n\nThe rate of evaporation depends on a number of factors:\n1. Concentration of the substance evaporating in the air: If the air already has a high concentration of the substance evaporating, then the given substance will evaporate more slowly. \n2. Concentration of other substances in the air: If the air is already saturated with other substances, it can have a lower capacity for the substance evaporating. \n3. Concentration of other substances in the liquid: If the liquid contains other substances (such as salts), it will have a lower capacity for evaporation. This is due to Raoult's law. \n4. Temperature of the substance: If the substance is hotter, then evaporation will be faster. \n5. Flow rate of air: This is in part related to the concentration points above. If fresh air is moving over the substance all the time, then the concentration of the substance in the air is less likely to go up with time, thus encouraging faster evaporation. In addition, molecules in motion have more energy than those at rest, and so the stronger the flow of air, the greater the evaporating power of the air molecules. \n6. Inter-molecular forces: The stronger the forces keeping the molecules together in the liquid or solid state the more energy that must be input in order to evaporate them. \n\nNow one can understand why evaporation of water increases in sunshine. It is primarily because of the increased temperature and probably also due to the increased flow of air during sunshine.
134468
No, the temperature of air does not affect it's ability to go through a magnetic field.  Air will travel through/ exist in a magnetic field no matter what it's temperature.
784726
Fan increase the speed of air, Air will do the rest.  Excess Temperature will desipate into air. Air will carry more heat In less time.
769934
It's the actual temperature with humidity, wind chill factor (if applicable), dew point and other conditions taken into consideration. There's actually a mathematical equation to figure it out but it may be hard to find since the calculations are done by computers these days.
387707
Temperature decreases w/ height as you move up through the troposphere b/c of a decrease in air pressure.\n\nAir pressure steadily declines as you move up b/c there is less gravity. Since gravity acts on everything that has mass, including air, it holds most of the earth's air close to the ground. Air acts as an insulator or blanket, absorbing long wave radiation reradiated from the earth. When you move upward away from the surface, the air thins out. There is less air to hold heat.\n\nHowever, once you leave the troposphere, you enter the stratosphere. Here the temps steadily increase due to the presence of the ozone layer. The ozone traps heat.\n\nAs you move away from the stratosphere you will enter the mesosphere where temps decrease again due to less air & movement away from the ozone layer.\n\nAs you go even higher & enter the Thermosphere, the temps increase again b/c solar radiation is so intense that the few air particles that are present are super heated. The chances of being burned are slight to none b/c the air particles are few & far between. After all that is what is holding the actual heat.
225367
warm air does rise but it cools off as it does. the rule is that the atmosphere cools off 3 degrees for every 1000 ft rise in elevation. 10000 ft up its 30 degrees colder than at the surface.
26339
The short answer is that heat rises & cold air falls. As the sun heats the earth & THE EARTH ROTATES, warm air rises & falls as the day passes, creating movement of the air, combined with the evaporation of our seas into steam, the steam rises, just as heat rises, when the steam or heat reaches an elevation that makes the steam cool to a point that it can no longer rise, the steam becomes rain as the water particals bump into each other, eventually becoming too heavy, & they fall again.
102721
I won't do your homework for you, but I will give you a few hints.\n\nThe first hint is that ddnight is talkin' smack. This has nothing to do with atmosoheric composition.\n\nThe second hint is that you should be looking very varefully at the relative effect of C4 and CAM utilisation on water LOSS. Underline the word 'loss".\n\n--------------------\n>>>CAM plants and C4's do better in higher temps than C3's.\n\nGenerally yes. But the question is why the plants died in that order. Begonia are tropical plants, so a temperature would not have killed it, and the pineapple is both tropical nad C4, sdo temperature effects can't be at play directly.\n\nOnly one plausible explanation remains.
30834
The air is not warmed directly by the sun's rays, but by infrared, or long-wave radiation from the earth. The sun's rays strike the earth, and are absorbed by the earth, which raises the temperature of the earth. The earth reradiates the energy at a wavelength dependent on the temperature of the earth. The air is able to absorb the earth radiation, and becomes warmer. At high altitudes, as on mountain tops, strong winds keep the air mixed, and prevent much rise in temperatures near the surface of the mountain.\n\nAs you go up in altitude from the surface of the earth, the air cools at a fixed rate. This is called the "lapse rate," and for unsaturated air, that rate is about 5 deg. C. for each thousand feet of altitude. For saturated air, the rate is about 3.5 deg.C. for each thousand feet of altitude.
1159227
As a general rule, warm air rises and cool air sinks\nit expands and becomes lighter as the molecules of air move farther apart
1070939
Temperature decreases as altitude increases-the temperature of the atmosphere is coupled to the temperature of the ground by convection. Warm air rises and carries heat.\nAs it expands, it cools, leading to a decrease in temperature with altitude. This occurs in the troposphere, where most of the earth's weather happens.\nThis occurs in the troposphere, where most of the earth's weather happens. Once past the tropopause, where the troposphere ends and the stratosphere begins, it's a whole different ballgame.
40143
I'm not sure I've noticed this specific to rain, but I'll throw out an observation:\n\nFirst, the thermostat temperature is going to be different than the ambient temperature the farther you get from the thermostat.  This may seem obvious, but the difference can be quite notable, especially near doors and windows, and even more so where ever the sun is shining in.  You don't specify that you are going from sunshine to rain, but this may be part of what happens when a rainstorm comes through - in addition, if the rain is cold, it will chill the windows down and flip the temperature to where it is cooler near the windows than near the thermostat, instead of vice versa.  \n\nIt is also going to take time for this temperature change to get to the thermostat, so you may find the AC running, even though you don't need it anymore.
185446
Moisture rises in the air as water vapor. When the moisture is rising, the temperature continuously decreases because of atmospheric conditions, and the cooling causes this moisture to "condense" into tiny droplets which are visible yet still light enough to remain airborne.
51534
It all depends on the enviroment.  Obviously in a cooler environment it will take a lot longer to mold than in a warmer one.