It depends on the temperature!
If you are asking how much pressure you would have to compress methane to in order to liquify it at room temperature, the answer is that methane won't liquify at room temperature. The critical temperature for methane is -87.2 degrees centigrade. Above that temperature it will not liquify no matter how much pressure you apply. At -82.7 degrees centigrade it would take a pressure of 45.96 bar to get it to liquify. See: http://www.chem.purdue.edu/gchelp/liquids/critical.html
Old natural gas tanks work by storing compressed natural gas at high pressure. A regulator controls the flow of gas out of the tank for use in appliances or vehicles. As the gas is used, the pressure in the tank decreases, requiring periodic refills to maintain a steady supply.
Natural gas is compressed by removing impurities and water, then using compressors to increase its pressure. This process reduces the volume of natural gas, making it easier to transport and store. Compressed natural gas (CNG) is typically stored in high-pressure tanks for use as a fuel source.
An ideal gas is, precisely, an idealization - a ficticious substance that will NOT liquify, but remain a gas, and have a volume that is exactly proportional to the temperature (at a given pressure). Real gases are an approximation to an ideal gas, under a wide variety of conditions, but at low temperatures, or high pressures, there are discrepancies.
Natural gas in its normal form is a gas. When natural gas is cooled to a temperature of -162 degrees C, it is compressed into a liquid is is 1/600th its original size. Liquefied natural gas is much easier to transport then compressed natural gas.
At 1atm pressure, nitrogen should be cooled below -196C in order to liquify. When it comes to industrial purposes, a higher pressure is usually used as the meting point rises.
To liquify a gas, it must be cooled below its critical temperature while maintaining a pressure above its critical pressure. This causes the gas to condense into a liquid state, where the intermolecular forces are strong enough to overcome the kinetic energy of the particles. This process is typically achieved through compression and cooling in a refrigeration system.
The steps involved in conducting a natural gas pressure test include shutting off the gas supply, connecting a pressure gauge to the system, pressurizing the system to the required level, monitoring the pressure for a specified time, and checking for any drop in pressure which could indicate a leak.
Because there is no pressure being placed on the gas, the molecules do not become condensed enough to form a liquid.
Without knowing whether this is atmospheric-pressure natural gas, pipeline-pressure or compressed natural gas (and the pressure it's been compressed to), or liquefied natural gas, this is an unanswerable question.
Yes, a regulator is typically required for a natural gas fireplace to ensure the gas pressure is correct and safe for use. It helps regulate the flow of gas from the supply line to the fireplace, preventing pressure fluctuations that could lead to issues such as incomplete combustion or gas leaks.
Compressed natural gas is natural gas under pressure which remains clear, odorless, and non-corrosive. This is when natural gas is compressed to less than 1% of its volume at standard atmospheric pressure.
medium pressure
Pressure helps in liquefaction of a gas by reducing the volume occupied by the gas molecules, which in turn forces them closer together. When the gas molecules are compressed under high pressure, they lose their kinetic energy and slow down, allowing intermolecular forces to overcome the kinetic energy and pull the molecules closer together, leading to liquefaction.
If you are asking how much pressure you would have to compress methane to in order to liquify it at room temperature, the answer is that methane won't liquify at room temperature. The critical temperature for methane is -87.2 degrees centigrade. Above that temperature it will not liquify no matter how much pressure you apply. At -82.7 degrees centigrade it would take a pressure of 45.96 bar to get it to liquify. See: http://www.chem.purdue.edu/gchelp/liquids/critical.html
In order to liquify oxygen gas, the critical temperature is 154.58K (i.e., -118.57 °C) and the critical pressure is 5.043MPa.
It must. You have to take heat out of the gas in order to liquify it.