what is refrigerants and its types,give preparations and properties of each type of refrigerants?
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Start with \n\nhttp://oaspub.epa.gov/webimore/aboutepa.ebt4?search=12,1,4\n\nand do a good web search.  Your question is way too broad for this forum.
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appearance, color, physical state, density, heat conductivity, electrical conductivity, melting point, boiling point.
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This page has several, with links as well:\nhttp://www.webelements.com/webelements/elements/text/Ne/key.html\n\nHere are three at random:\n1. Origin of name: From the Greek word "neon" meaning "new"\n\n2. Liquid neon is an economical cryogenic refrigerant. It has over 40 times more refrigerating capacity per unit volume than liquid helium and more than three times that of liquid hydrogen.\n\n3. Of all the rare gases, the discharge of neon is the most intense at ordinary voltages and currents.
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propane\nbutane\nhydrogen\nmethane\nacetylene\nmethyl chloride\nnickel carbonyl\nhydrogen sulfide\n\n\nhundred of others
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Talk about flasks\n\n1. Materials of construction and grade (Glass, teflon, etc) - Type A volume markings or borosilicate versus soft glass\n\n2. Function of apparatus such as boiling, distillation, volumetric
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I will assume the refrigerant is Freon, with a boiling point of -40F. When the refrigerant condenses, as in goes from gas to liquid, it assumes a lower state of energy, therefore it must give off energy, in the form of heat, thus the air would increase in temperature. This occurs in the condensor of an air conditioner, the part that is OUTSIDE your house.\nInside your house, the refrigerant BOILS in an evaporator (at -40F) which requires heat INPUT, which is taken from the surrounding air, thus COOLING your house. These events combined are called a Carnot Cycle
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do u mean air compressor or refrigeratioon compresor.\ni can name the manufacturers in ships equipment. \nhaltapa, elgi, alfa laval , etc. be specific.
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1,2,3,4-Tetramethyl-1,3-cyclopentadiene \n85% (26.5 USD/gr)\n\nC9H14 \nF.W. 122.21 \n[4249-10-9] \n\nDensity 0.80g/mL \nBoiling Point 142°C \nFlash Point 42.00°C \n\nn n20D 1.47 \n\nRecommended storage: Refrigerator +4°C
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The basis of most (more than 95%) refrigeration systems is the ' vapour compression cycle". The media (vapour) is Refrigerant (hydrochlorofluorocarbons - HCFC or hydrofluorocarbons - HFC) or freon which is non-toxic, non-explosive and non-corrosive. These Refrigerants have a boiling point of aprox. Minus 40°C which means that even if the air (outside or inside) temperature is as low as minus 39°C it still has heat to be absorbed by refrigerants. \n\nThe vapour compression cycle requires four components:\n\n1) The compressor: To raise the pressure of low-pressure low temperature gas to high-pressure high temperature gas. There are many types of compressors; the most common are Reciprocating, Rotary, Scroll, Screw and Centrifugal. \n2) The Condenser: To change the state of high-pressure, high temperature gas to high-pressure, high temperature LIQUID. This is achieved by passing ambient air (known as air-cooled) or water (known as water-cooled) over the condenser tubes. \n3) The Expansion Device: The purpose of the device is to change the state of the refrigerant from high-pressure, high temperature liquid to low pressure low temperature saturated liquid. This is achieved by passing the liquid through an orifice. \n4) The Evaporator: To absorb the heat from room air or water, which in the case of a chiller is circulated around the evaporator coil. This will change the state of low-pressure, low temperature saturated liquid to low pressure, low/medium temperature gas. \nThese components are common to the vast majority of domestic refrigerators and appear in slightly different forms in 95% of air conditioning and refrigeration systems, Domestic, commercial or industrial. This vapour compression cycle if reversed (condenser becomes evaporator and visa versa) can now absorb heat from outside and transfer it to inside, hence saving energy. This is called Reverse Cycle Heat Pump. Energy savings can be as high as 4 to 1 (for every kW input we get 4 kW output).
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a-CO2 (supersaturated)\nb-There are many, however judging from all the answers I'd guess CO2 is what your are looking for here.\nc-CO2 (frozen)\nd-CO2 (freon [or some other fluorocarbon] in the old days, but no more!)\ne-CO2 (waste from yeast fermenting)\n\nJust for fun, other decaffeinates are:Methylene Chloride, Ethyl Acetate, Carbon, and Triglycerides.\n\nGet an "A".
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refrigerated storage see http://en.wikipedia.org/wiki/Charles_Drew#Advanced_study\n\nGood Luck!!!
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There are two broad classifications:  physical properties and chemical properties.  Physical properties include the solid, liquid, and gaseous phases (mostly).  Chemical properties, on the other hand, are many and varied.  There's organic and inorganic, biochemical, petrochemical, there are some based on a particular anion (nitride, oxide, phosphate, etc.); it all really depends on how specific one wants to be and what one is attempting to do or study.  \n\nThe analysis of matter is also broad:  there is structural analysis of both atoms and molecules (how is it put together?), there is quantitative analysis (how much is present?), and there is qualitative analysis (what is it?).
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All of them acts in cools the air in a household refrigerator, refrigerant gas (e,g Freon, ammonia,..etc) compressed through compressor and evaporated , and during that circle air cools and heat transfer occur.
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Take table for R134a refrigerant:\n\na) delta s = entropy change\n--inlet for evaporator assuming 50%moisture= interpolate to get S \n@200kpa for R134a\n0       Sg   \n0.5     S\n1       Sf\nget Sg and Sf from table at 200kpa for R134a. \n \n--out for evaporator = Sg at 200Kpa (get from table) since it is sat vap.\n\nthe difference of both Sfg and Sg is the answer.\n\nb)  delta S = Q / T  where Q = 120 KJ and T = -5+273 = 268K\n\nc) add both a) and b) is the total entropy
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The different kinds of compounds are those that contain ionic bonds and those that contain covalent bonds (which could also be either polar or nonpolar)\nThe kinds of mixtures are homogeneous (where each component of the mixture is evenly distributed) and heterogeneous (where the components are unevely distributed)
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Methane\nsulfur dihydride\nchlorofluorocarbon
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Of the choices you listed above, then Alkane is the answer.  There are other compounds which fit this description, for example the cycloalkanes which is a sub-group of alkanes.\n\nThese are also called aliphatic compounds and saturated hydrocarbons.