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What pressure must be used to compress 850 mL of argon gas at 146 kPa to 150 mL? (Temperature is held constant.)
Nitrogen gas is not in itself flammable, and does not have an auto ignition temperature.
The gas takes on the size and shape of the container it's in. So if you make the volume of the container smaller (compress it) the volume of the gas is smaller as well. However, this comes at a higher pressure exerted, so there is no spontaneous mass creation.Well, by definition, compress means "to make smaller; to press or squeeze together; or to make something occupy a smaller space or volume." Therefore, the very word "compress" implies a decrease in volume. So if you wanted to know what happens when you compress a gas, you are squeezing it into a smaller space, or decreasing the volume.If you were to let the gas maintain a constant temperature as you compress it, then pressure would increase. If you were to let the gas maintain a constant pressure, then temperature would decrease.If you were to rephrase your question to "what happens to the volume of gas if put under pressure," then the gas' volume would decrease. For the temperature to remain constant and the pressure to increase, a gas must decrease in volume to occupy a smaller area.
"Constant pressure" means the pressure must not change.
In a closed system with constant pressure and no input or output of heat, the gas temperature will remain constant. In that same system, if the pressure is increased, then the gas temperature will also increase. If pressure is decreased, then the gas temperature will decrease.
If the temperature of the gas is decreasing, then in order to maintain constant pressure, you would have to compress it in volume.
What pressure must be used to compress 850 mL of argon gas at 146 kPa to 150 mL? (Temperature is held constant.)
Nitrogen gas is not in itself flammable, and does not have an auto ignition temperature.
The first principle: Nitrogen liquifies at -196C, and air contains a lot of nitrogen. So you're going to get your liquid nitrogen out of air, right?The second principle: If you compress air it heats up, and if you release the pressure it loses that heat--principle of entropy at work. Good so far?The third principle is how this really works: if you compress the air, cool it down while it's compressed, and then release the pressure it will get even colder. So what you do is very simple: compress air, cool it and release the pressure. As the temperature of the air drops during pressure release, eventually it will pass through the magic -196C point and the nitrogen will condense out of it.
Temperature increases as pressure increases.
As pressure increases, if temperature is constant, the gas will decrease in volume.
The product of pressure and volume. Does PV = nRT look familiar? (:
At constant temperature p.V=constant, so pressure INcreases when decreasing the volume.
The gas takes on the size and shape of the container it's in. So if you make the volume of the container smaller (compress it) the volume of the gas is smaller as well. However, this comes at a higher pressure exerted, so there is no spontaneous mass creation.Well, by definition, compress means "to make smaller; to press or squeeze together; or to make something occupy a smaller space or volume." Therefore, the very word "compress" implies a decrease in volume. So if you wanted to know what happens when you compress a gas, you are squeezing it into a smaller space, or decreasing the volume.If you were to let the gas maintain a constant temperature as you compress it, then pressure would increase. If you were to let the gas maintain a constant pressure, then temperature would decrease.If you were to rephrase your question to "what happens to the volume of gas if put under pressure," then the gas' volume would decrease. For the temperature to remain constant and the pressure to increase, a gas must decrease in volume to occupy a smaller area.
Liquid nitrogen can be kept at room temperature at sufficient pressure. Otherwise, it is a gas.
As pressure increases, if temperature is constant, the gas will decrease in volume.
The atmospheric pressure has no effect on the speed of sound when the temperature is constant. The air pressure has no influence on the sound.