By agreement, the very definition of 'volatile liquid' identifies a liquid which evaporates at Standard Temp/Pressure. The rate at which it evaporates is called its vapor pressure. High VP means it will evaporate rapidly at STP. Theoretically, any material, element or compound, in liquid form can be made to evaporate by increasing the temperature and reducing the pressure.
Gas-deposition makes use of this theory to build industrial diamonds from hot, highly-pressurized carbon vapor.
The two characteristics of the troposphere that help retain water vapor on Earth are the relatively low temperatures and high pressure at lower altitudes. The low temperatures allow the air to hold more water vapor, while the high pressure helps keep the water vapor from escaping into space.
High pressure is associated with cool, dense air--which can hold LESS wator vapor than warm air. Low pressure would be "moister" than high pressure--meaning it would carry a higher percentage of water vapor or have a higher relative humidity.
The pressure is low today.
A compound that sublimes readily typically has weak intermolecular forces, allowing it to transition directly from a solid to a gas phase without passing through a liquid phase. Such compounds often have low melting points and high vapor pressures, making them volatile.
Air tends to flow from areas of high pressure to areas of low pressure. This movement occurs in an attempt to equalize pressure differences in the atmosphere.
Refrigerant enters the compressor inlet as a low pressure vapor. The compressor increases the pressure, and discharges it as a high pressure vapor.
Cycles refrigerant through the system and changes the state of the refrigerant from a low pressure vapor to a high pressure vapor.
Refrigerant leaving a compressor in a car's air conditioning system is a high pressure, high temperature vapor. This vapor carries heat energy away from the evaporator coil inside the car, allowing the refrigerant to absorb heat from the cabin air and cool it down before circulating it back.
A refrigerator is basically an air conditioning system. There is a high (discharge) and a low (vacuum) side to such systems. As it goes through the system, the refrigerant will change state (e.g., high pressure vapor to high pressure liquid, high pressure liquid to low pressure liquid, low pressure liquid to low pressure vapor, low pressure vapor back to high pressure vapor). This facilitates the absorption of heat from the refrigerator compartment and the exchange of that heat to the ambient air. What you're seeing there are the pressure readings (in psig) of the high pressure and low pressure sides of that system. Your refrigerator and an automotive AC system use different refrigerants, and thus have different system operating temperatures. While those numbers would be excessively high on an automotive system, I don't know if that's the case with a refrigerator. You'd need to inquire with a qualified service professional on the matter of what your refrigerator's operating pressures should be.
A liquid with a high vapor pressure is said to be volatile, meaning it easily forms vapor at a given temperature. This characteristic is often associated with substances that have low boiling points.
The high pressure fitting is located either in the high pressure vapor line or muffler, while the low pressure fitting is located on the accumulator.......
Starting at the compressor;Low pressure vapor refrigerant is compressed and discharged out of the compressor.The refrigerant at this point is a high temperature, high pressure, superheated vapor.The high pressure refrigerant flows to the condenser by way of the "Discharge Line".The condenser changes the high pressure refrigerant from a high temperature vapor to a low temperature liquid and leaves through the "Liquid Line".The high pressure refrigerant then flows through a filter dryer to the Thermal Expansion valve or TXV.The TXV meters the correct amount of liquid refrigerant into the evaporator.As the TXV meters the refrigerant, the high pressure liquid changes to a low pressure, low temperature, saturated vapor.This saturated vapor enters the evaporator and is changed to a low pressure dry vapor.The low pressure dry vapor is then returned to the compressor in the "Suction line".The cycle then starts over.
Add refrigerant vapor on the low side of the system ,the compressor raises the pressure of the refrigerant on the high side of the system and lowers the pressure on the low side
Add refrigerant vapor on the low side of the system ,the compressor raises the pressure of the refrigerant on the high side of the system and lowers the pressure on the low side
Yes, mercury's vapor pressure is considered low at room temperature. Mercury is a heavy liquid metal that evaporates slowly at ambient conditions, resulting in a relatively low vapor pressure compared to other substances.
The two characteristics of the troposphere that help retain water vapor on Earth are the relatively low temperatures and high pressure at lower altitudes. The low temperatures allow the air to hold more water vapor, while the high pressure helps keep the water vapor from escaping into space.
It compresses air... No, that's incorrect, actually. It compresses refrigerant from a low pressure vapor to a high pressure vapor. It also creates the pressure which circulates the refrigerant through the system.