The critical temperature for carbon dioxide is 304K (87.8°F [31°C]). That means that no amount of pressure applied to a sample of carbon dioxide gas at or above 304K (87.8°F [31°C]) will cause the gas to liquefy. At or below that temperature, however, the gas can be liquefied provided sufficient pressure is applied. The corresponding critical pressure for carbon dioxide at 304K (87.8°F [31°C]) is 72.9 atmospheres (~73000 kPa). In other words, the application of a pressure of 72.9 atmospheres of pressure on a sample of carbon dioxide gas at 304K (87.8°F [31°C]) will cause the gas to liquefy. See related link to read more about the Liquefaction of Gases.
Oxygen liquefies at a temperature of -183 degrees Celsius under normal atmospheric pressure.
No, I do not agree with the statement. A solid substance does not liquefy at 25 degrees Celsius and change back to solid at 20 degrees Celsius unless the substance has a specific phase transition point within that temperature range.
Ammonia does not have a melting point since it exists as a gas at standard temperature and pressure. Ammonia will liquefy at temperatures below -33.34 degrees Celsius under pressure.
Depending on the media agar solidifies at 32 to 40 degrees Celsius. It remains firm up to about 65 degree Celsius.
All forms of gas will liquefy at a sufficiently low temperature.
All forms of gas will liquefy at a sufficiently low temperature.
That is the boiling point of oxygen. So if the temperature in going downwards then oxygen will begin to liquefy whereas if the temperature is rising, then liquid oxygen will begin to boil.
You can liquefy metal by heating it to a high enough temperature.
Chlorine has a relatively low boiling point of -34 degrees Celsius, so it requires low temperatures to liquefy because its boiling point is close to room temperature. By cooling chlorine below its boiling point, it transitions from a gas to a liquid state.
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 human body does not "melt" at a specific temperature. However, the melting point of human tissue is approximately 130 degrees Fahrenheit (54.4 degrees Celsius). At this temperature, the proteins and fats in the body begin to break down and liquefy. It is important to note that this temperature is well above the normal body temperature of around 98.6 degrees Fahrenheit (37 degrees Celsius), and exposure to such high temperatures can cause severe burns and irreversible damage to the body.
Depends which gas