What happens to the surrounding air when a refigerant condense& why this happens?
91397
It gets heated.  In a refrigerator, the refrigerant fluid circulates in a loop from compressor to outside heat exchanger (to release heat) to the inside exchanger (to absorb heat).  Compression increases the fluid's heat, and the outside heat exchanger then transfers to the surrounding air that added heat and additional heat that is released when the gaseous part of the refrigerant condenses.  The latter is called the heat of vaporization, and is a specific property of any vaporizable material.  That same heat of vaporization is absorbed in the inside exchanger as the fluid evaporates.  This absorption cools the refrigerator.  An interesting if small improvement was made on the basic system; the addition of a length of side-by-side welded refrigerant tubing called the siamese.  The still somewhat warm fluid from the outside exchanger flows adjacent to, but in the opposite direction to, the still pretty cold fluid from the inside exchanger.  This "counterflow" exchange helps chill the fluid entering the inside exchanger.  Although warmed up some, the fluid flowing from the inside exchanger is going to get heated up a lot by the compressor anyway, so this ploy increases efficiency.
628632
the water is warmer then the air and it works the same way breath on a glass window fogs up. the moisture in the air condenses and rises, but this only happens when it is cold or early morning, only when the air is colder then the water.
657506
Because of all the water that gathers on the tray that supports the a/c mechanism. As air is cooled, water condenses from the air and drips down to the bottom where it gathers. Microbes that like cool moist environments will grow there. These microbes can then be introduced into the air and blown into the room.
453673
While it is true that hot air rises, it is also true that it will cool as it rises. This is called adiabatic cooling.\n\nAir pressure deminishes as you go to higher altitudes b/c there is less gravity. Less air pressure means air particles are more spread out. Hence the adiabatic cooling effect.\n\nThis is true in the troposphere, the atmospheric layer in which we live & where weather occurs.\n\nAs you go higher the reverse happens. In the stratosphere it gets warmer due to the ozone layer. In the mesosphere it gets colder again b/c you move away from the ozone layer. In the thermosphere it gets warmer again b/c of the bombardment of air particles by intense short wave solar radiation.
314426
Hotter air rises when it is hotter than the air around it because it  it is less dense.Vise versa for cold air.
978582
These answers start answering themselves as you read.  I think you missed this key data while studing.\nhumidity is the amount of steam(heated water) in the air\na drop in heat makes condensation(the water is no longer steam but water)\nthat is the point of all these questions keep that in mind while answering them.\n\nhope this helps\n-David-
1015955
Temperature inversions.  Hot air rises and cold air sinks. Normally they pass through each other, but sometimes the atmosphere just flips over pretty fast. Sorry I don't know the circumstances, but I think it has to do with the proximity of of high density air masses.
237142
Condensation is the process of a gas turning into the liquid state of the same compound.  For example, when you have a cold drink the outside becomes wet because water vapor from the air condenses on the outside of the glass.\n\nEvaporation is the reverse of condensation.  In other words, liquid turing into gas.  For example, wet cloths dry because the water on the fabric evaporates.\n\nCondensation and evaporation are not matter themselves, but rather processes that matter can undergo.  The three common states of matter are solid, liquid, and gas.  Condensation and evaporation refer to the transition between two of these phases (liquid and gas).  The transitions between solid and liquid are freezing (liquid becomes solid) and melting (solid becomes liquid).  It is also possible for a solid to become a gas through a process known as sublimation.  The reverse of sublimation (i.e. gas to solid) is called deposition.
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.
330682
Condensation - the warm moist air in the car cools down and when it 'hits' the glass colled by the outside air and leaves a film, then drops of water.
468900
the compressor is used to compress cold air to be used in the cooling process of a/c. you lose very little coolant in the production of a/c.it takes the humidity out of the surrounding air and that is why we see the outside of the a/c drip water. that is the water or humidity that has been taken out of our environment
291177
Condensing is the process where gas turns to liquid. Since ice is a solid, it won't condense anywhere in the universe!
841200
Actually, the air doesn't condense; rather, the water in the air condenses due to the change in pressure. It's the same basic effect as when you change temperature: like when you exhale on a could day and your breathe turns to fog: the decrease in temperature of the air in your breath causes the release and condensation of the moisture in it as a fog. \n\nThe same principle applies to a change in pressure such ias that caused by an airplane's wing. For instance, in an air compressor tank, moisture released by the compression accumulates at the bottom of the tank and has to be periodically drained...
994448
It takes energy to evaporate.  When a liquid reaches the evaporation point, an amount of the liquid starts to turn to a gas, to complete this transformation in state, it absorbs energy from the surrounding liquid which cools it.\n\nYour Air Conditioner works on the same principle.  In your attic is a coil where high pressure refridgerant is suddenly exposed to a low pressure zone inside the coil of your air conditioner.  When it meets this low pressure zone, it evaporates from a liquid to a gas.  Again, to make this state change, it absorbs energy from anything around it, in this case the air flowing over the coils provides that energy.\n\nThe gas then is pushed through the system out to your outside unit where the excess heat it absorbed is vented off and the gas is compressed back into a liquid.
89918
Convection and conduction are both important.  Radiation is negligible.  Heat is transported from the inside air to the refrigerant, and from the refrigerant to the outside air, through two heat exchangers.  In each exchanger, heat is transferred by a mixture of convection and conduction* between refrigerant and heat exchanger tubing, conduction through the walls of the tubing, and convection* (which may be forced by a fan) between the tubing and the air.  \n*Some may disagree with my interpretation of which kinds of heat transfer dominate each of these phases; it's a judgment call.  If most of the heat transfer is due to motion of the fluid (refrigerant or air) it's convection; if not it's conduction.
125707
The radiator in your car is a heat exchanger. It removes heat from your engine and puts it in the atmosphere.\n\nThe condenser in an air conditioner exchanges heat between the atomsphere and the refrigerant in the system. The evaporator coil in your AC exchanges heat between the refrigerant and the air in the house, car or what every is being cooled.\n\nIn a refinery or chemical plant you will find reboilers (they heat the fluid in a distillation column), overhead condensers (they cool the vapors coming off of a distillation column), feed preheaters that warm the fluid going to a distillation column.\n\nIn a steam power plant, you have steam condensers that condense the steam from the exhaust of steam turbines, boiler feed preheaters, combustion air preheaters. In a power plant that uses gas turbines there are waste heat recovery units that extract heat from the gas turbine exaust.
1128521
gas cools down if it expands suddenly.\n\nsimilar principle is used in AC and refrigerators.