What happens to the distance between the molecules of CNG when the cylinder of CNG is slowly used up
Answers
Answer:
The compressed natural gas or CNG was made by compressing natural gas under standard atmospheric pressure. This CNG is distributed in cylindrical tank. It is used as a fuel in automobile industries and household processes. It is also used in vehicles as a fuel.
Apart from LNG (liquefied natural gas), CNG is in gaseous form inside the cylinder but the LNG is in liquid form inside the cylinder. When LNG comes out from the cylinder it is in gaseous form but CNG is in gaseous form when it is inside and outside the cylinder. CNG is less expensive than LNG but the mass of gas inside the CNG cylinder is lesser than LNG.
And the question here is what happens between the molecules of CNG when the cylinder of CNG is slowly used. When the cylinder of CNG is slowly used up, the distance between the molecules of CNG will increase. The molecules of CNG will move apart from each other and fill the cylinder. We know that CNG is filled in the cylinder as compressed natural gas inside the cylinder, when it is slowly used up there will be space increasing between the CNG molecules to move somewhat freely than before inside the cylinder as it is present in gaseous form. Gaseous molecules tend to move freely when they get more space. So when some of the gaseous molecules goes out then the other molecules get free space and they move freely inside it.
Answer:
What happens to the molecules of the CNG gas when the cylinder is used up slowly… well the fact can be understood if you are focused on the state of matter.
Explanation:
Gas is a state of matter in which, under normal conditions of temperature and pressure, the particles of the medium are far apart each other. To get these particles closer to each other they have to be compressed under high pressure.
So by gas theory, it is certain that Higher the pressure, more compressed are the gas molecules. This is what happens in CNG cylinder.
When the gas is being filled in the cylinder a very high pressure is created to it can be compressed maxim. Under this circumstance, the molecules are forced to move much closer to each other.
But by general nature of gas molecules, each molecule will tend to push away each other molecule so it can move away. But as in a fully filled cylinder the molecules do not find a way out to release the pressure, so they have to maintain their position closer to each other.
The moment this pressure is released ….by opening the valve and thus using up the CNG gas from the cylinder, the molecules will find an escape window through the open valve. So more number of molecules will simply try to escape out of the cylinder thus releasing the pressure and forcing other molecules to slowly move away from each other.
At lower pressure, when most of the CNG has been used up, the molecules are far apart from each other and maintain that state till further compressed.