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Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

A gas doesn't have a definite shape or volume iits molecules are very loose A liquid doesn't have a definite shape, but it does have a definite volume. A solid has both a def … inite shape and volume. molecules in solid are closely bound together. In other words, the application of a pressure of 72.9 atmospheres on a sample of carbon dioxide gas at 88°F will cause the gas to liquefy. (An atmosphere is a unit of pressure equal to the pressure of the air at sea level, or approximately 14.7 pounds per square inch.) The incoming pressure of natural gas in the UK is somewhere between 19-23 mbar. Answer     The density of LNG is roughly 0.41 to 0.5 kg/L, depending on temperature, pressure and composition. (In comparison water has a density of 1.0 kg/L) A gas doesn't have a definite shape or volume iits molecules are very loose A liquid doesn't have a definite shape, but it does have a definite volume. A solid has both a def…inite shape and volume. molecules in solid are closely bound together. Generally speaking, the closer natural gas gets to a customer, the smaller the pipe diameter is and the lower the pressure is. The gas utility's central control center continuously monitors flow rates and pressures at various points in its system. The critical temperature of a gas is the temperature at or above which no amount of pressure, however great, will cause the gas to liquefy. The minimum pressure required to liquefy the gas at the critical temperature is called the critical pressure. For example, the critical temperature for carbon dioxide is 88°F (31°C). That means that no amount of pressure applied to a sample of carbon dioxide gas at or above 88°F will cause the gas to liquefy. Aside from the machinery used to compress the gas and the energy used to drive that machinery, essentially no CO2 is produced. Natural gas at the well head is at high pressure …, in order to liquefy it it needs to be compressed to about 50 atmospheres and cooled by running it through condensers to release the heat of compression. What is the typical burner pressure for natural gas? This is the pressure supplied from the gas meter to a appliance this should be 20mb at the inlet of the gas valve before the appliance is working ie taking gas from the main p … ipe. Gases, liquefaction of. Liquefaction of gases is the process by which a gas is converted to a liquid. For example, oxygen normally occurs as a gas. However, by applying sufficient amounts of pressure and by reducing the temperature by a sufficient amount, oxygen can be converted to a liquid. How Does the Natural Gas Delivery System Work? How Does the Natural Gas Delivery System Work? Gas flowing from higher to lower pressure is the fundamental principle of the natural gas delivery system. The amount of pressure in a pipeline is measured in pounds per square inch. From the well, the natural gas goes into gathering lines, which are like branches on a tree, getting larger as they get closer to the central collection point. Query: at what pressure does natural gas liquify
Output:
In order to liquefy natural gas it needs to be compressed to about 50 atmospheres and cooled by running it through condensers to release the heat of compression.