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What is the function of gas regulator of a Bunsen burner?
The gas regulator controls the fuel gas flow.
The volume of a gas is directly proportional to the number of moles of that gas if?
the pressure and temperature are held constant. ideal gas law: Pressure * Volume = moles of gas * temperature * gas constant
How much gas can a gas syringe collect?
A gas syringe is used to measure and dispense liquids or insert and withdraw a volume of gas. These syringes vary in sizes and can collect from 500 ml to 0.25 ml of gas.
What is a sentence for gas?
My parents put gas in the car yesterday. Our car almost ran out of gas Friday.
Im a substance that has no fixed volume or shape?
A gas is a substance with no definite shape or volume.
What is the other name for R134 gas?
it is a gas called BO for
What is the name of the gas used in air conditioners and refrigerators?
Gas used in air conditioners are: R12 freon is dichlorodifluoromethane R134a is Tetrafluoroethane
What can spray has liquid air in it?
A can of compressed air spray generally contains a liquefied gas, such as difluoroethane or tetrafluoroethane, which evaporates into a gas when sprayed. This gas is used for cleaning electronics and keyboards by removing dust and debris.
What does R-134A stand for?
In chemistry, this chemical compound, R-134A is the symbol for tetrafluoroethane. Tetrafluoroethane can be used as a solvent in organic chemistry.
What is the chemical used in refrigeration?
tetrafluoroethane Called R-134a
What is name of R-134a?
HFC 134a chemical name CH2FCF3(Tetrafluoroethane)
Is Tetrafluoroethane r13a an asphixiant?
Yes. While non-toxic, if it displaces enough oxygen suffocation will occur.
What is freon made of?
Freon is a type of refrigerant that is typically made up of a blend of hydrofluorocarbons (HFCs), including components such as difluoromethane (HFC-32), pentafluoroethane (HFC-125), and tetrafluoroethane (HFC-134a). These chemicals work together to create the cooling effect in air conditioning and refrigeration systems.
What are compounds of HFC?
Compounds of hydrofluorocarbons (HFCs) typically consist of hydrogen, fluorine, and carbon atoms. Common examples include HFC-134a (1,1,1,2-tetrafluoroethane) and HFC-410a (2,2,2,2-tetrafluoroethane). These compounds are widely used in refrigeration and air conditioning systems as alternatives to ozone-depleting substances like chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs).
What are the gases present in a modern refrigirator?
Modern refrigerators don't use CFC because CFCs are harmful to the atmosphere if released. Instead they use another type of gas called HFC-134a, also called tetrafluoroethane. HFC turns into a liquid when it is cooled to -15.9 degrees Fahrenheit (-26.6 degrees Celsius). www.energyquest.com Answer supplied by Humera Kaleem Sudi Arabia
What do refrigerators use to absorb heat and lower the temperature of the food inside?
FREON. Freon is now illegal because it damages the Earth's ozone layer. The replacement refrigerant is the inert gas tetrafluoroethane commonly called R134a. Also note that the refrigerator does not"absorb" the heat. It is transferred from inside the compartment to outside the compartment. It does this by the use of two heat exchangers. One transfers the heat from the inside to the refrigerant and the second transfers the heat from the refrigerant to the outside.
Explain the operating cycle of a freezer?
Freezers use the Second Law of Thermodynamics. Firstly, modern refrigerators don't use CFC because CFCs are harmful to the atmosphere if released. Instead they use another type of gas called HFC-134a, also called tetrafluoroethane. HFC turns into a liquid when it is cooled to -15.9 degrees Fahrenheit (-26.6 degrees Celsius). A motor and compressor squeezes the HFC. When it is compressed, a gas heats up as it is pressurized. When you pass the compressed gas through the coils on the back or bottom of a modern refrigerator, the warmer gas can lose its heat to the air in the room. Remember the law of thermodynamics. As it cools, the HFC can change into a liquid because it is under a high pressure. The liquid flows through what's called an expansion valve, a tiny small hole that the liquid has to squeeze through. Between the valve and the compressor, there is a low-pressure area because the compressor is pulling the ammonia gas out of that side. When the liquid HFC hits a low pressure area it boils and changes into a gas. This is called vaporizing. The coils then go through the freezer and regular part of the refrigerator where the colder liquid in the coil pulls the heat out of the compartments. This makes the inside of the freezer and entire refrigerator cold. The compressor sucks up the cold gas, and the gas goes back through the same process over and over.
