Are you completely demented?
He's management at Ki-Tech.
And it's Crowley not Crawley.
1980's thermodynamics is still1820's obsolete Carnot nonsense.Fool wrote: ↑Tue Dec 10, 2024 10:08 am .
Tommy wrote:Likewise, in the real world air released from an air tank expands, but that is beside the point.
Good. That is the point. The volume gets larger, so the new volume needs to be incorporated in the calculation. As I stated in my first attempt to help you in calculating the end temperature. Temperature doesn't go as low as just a pressure change would appear, because volume gets larger.
I am schooled in 1980's thermodynamics. An improvement by 160 additional years of science and mathematical improvement. You have no education remotely close to the study I've done. And you are denying it and me, and anyone else that you don't understand and disagree with. Take a step back. It isn't that hard to learn, it's just slightly painful.
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Here is some proof numb nuts.
In other words, solid CO2 isn't made from CO2 gas it comes from liquid. The gas just removes energy and stays a gas.Solid carbon dioxide is manufactured by decreasing the pressure of liquid CO2 until the point at which dry ice and cold vapor are formed.
Of course not.Fool wrote: ↑Wed Dec 11, 2024 12:02 am .
https://m.youtube.com/watch?v=QrHlwgmMTq4
For a manager of Ki-Tech John Crowley sure doesn't talk much about it. And does ever talk about PKK?
There is liquid CO2 in the fire extinguisher, but what comes out is CO2 gas that has already "boiled" reaching your so-called "escape velocity" even before leaving the tank. Classical thermodynamics does not recognize the Joule-Thomson effect. That is non-ideal (or REAL) gas behavior that the Kinetic theory does not recognize.CO2 is liquid in the bottle. You figure out how it becomes a solid by Jouel-Thommson expansion.
What you are talking about is erroneous. If anyone claims to understand it, it isn't because it makes any sense. Claiming someone understands you is moot, since you are in error.
Let's see now: "Solid carbon dioxide is manufactured by decreasing the pressure of liquid CO2 until the point at which dry ice and cold vapor are formed"Fool wrote: ↑Wed Dec 11, 2024 12:17 am .
https://www.cganet.com/carbon-dioxide-d ... e%20formed.
In other words, solid CO2 isn't made from CO2 gas it comes from liquid. The gas just removes energy and stays a gas.Solid carbon dioxide is manufactured by decreasing the pressure of liquid CO2 until the point at which dry ice and cold vapor are formed.
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Yes it does, so what? The explanation is in the text as shown. "The liquid changes to gas..."
. That delivers liquid to outside, just like an aerosol paint can.
Everyone here needs to learn. You are the only one in denial and failing to learn.
The liquid changes to both gas and solid. But it comes out as liquid, and turns to both in the atmosphere. It is briefly liquid at one atmosphere, super cooled liquid.Tommy wrote:Yes it does, so what? The explanation is in the text as shown. "The liquid changes to gas..."
You're an ignorant lunkhead.Fool wrote: ↑Thu Dec 12, 2024 6:17 am .
The liquid changes to both gas and solid. But it comes out as liquid, and turns to both in the atmosphere. It is briefly liquid at one atmosphere, super cooled liquid.Tommy wrote:Yes it does, so what? The explanation is in the text as shown. "The liquid changes to gas..."
Look at the phase diagram. CO2 liquid at very high pressures flash boils and decreases in temperature, as the temperature of the liquid goes below the freezing temperature at 1 atmosphere, it well... Freezes.
You will not be able to explain how cold gas upon expanding more suddenly becomes frozen by having it's density and freezing point decreased. But go ahead give a quackery reason for it.
It is awful how much quack descriptions are on the Internet in fire extinguisher and fire fighter sites. This is beyond simple quack authority. You must think for yourself. Please use science/mathematics/logic to understand the process of going from a high pressure liquid to a low pressure solid, and gas. Use the phase diagram. Turn a propane tank upside down and see the difference. Use a little one the new 5 gallon bigger ones have a position valve that stops the flow if inverted. Find out why it is impossible to make dry ice from dry gas. Liquid expulsion is necessary, and is the purpose of the siphon cylinder.
Get a can of refrigerant for recharging a car A/C. Try blasting it upside down and right side up. See which is colder. In electronics repair it is called 'freeze spray'.
https://www.amazon.com/MG-Chemicals-Sup ... 687&sr=8-4
The cans of automotive refrigerant at Walmart were cheaper but don't come with a convenient spray nozzle and need to be inverted to 'freeze'.
You will never understand thermodynamics until you understand a phase diagrams, and how to use it. Learn what different processes look like on it. The same goes for all the other diagrams and processes.
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