Curious - question about a pressure vessel and tempreature

In summary, the speaker is not interested in actually trying out a physics experiment, but is curious about the concept of using pressure to cool down a drink. They found a chart that shows the relationship between density, temperature, and pressure for water and realized that a significant amount of pressure would be needed to achieve a 10-12 degree Celsius decrease in temperature for a drink. They are not concerned with practicality and have already searched for similar discussions but found none.
  • #1
CybrSlydr
2
0
I have no intention of designing, building or experimenting with this, so no worries about safety. I'm just curious and did a Google search for Physics Forums and this was the first to come up.

I was wondering, when pressure decreases so does temperature, right? So, were we to have a pop (soda for you heathens :D ) can, how much pressure would it have to have on the inside so that when the pressure was released, it would cool it down to around 40 degrees? Insta-cool beverages! Assume it's already at room temperature (70 degrees) and normal outside pressure (1atm).

I'm not really concerned with feasibility or practicality - just curious about the factuality of what would be required.

I did do a search already but the only thread that asked this kind of question was closed.
 
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  • #2
  • #3
Oh wow, that means a LOT of pressure will be needed.
 

FAQ: Curious - question about a pressure vessel and tempreature

1. What is a pressure vessel?

A pressure vessel is a container or piece of equipment used to hold gases or liquids at a pressure different from the ambient pressure. It is designed to withstand the pressure exerted by the contents inside.

2. How is the pressure of a vessel determined?

The pressure of a vessel is determined by the amount of gas or liquid inside and the temperature. The ideal gas law, which states that pressure is directly proportional to the number of moles of gas, the temperature, and the volume, can be used to calculate the pressure of a vessel.

3. How does temperature affect a pressure vessel?

Temperature affects a pressure vessel by changing the pressure inside. As temperature increases, the molecules of gas or liquid become more energetic and move faster, increasing the pressure inside the vessel. This can be dangerous if the vessel is not designed to withstand the increased pressure.

4. What are common materials used to make pressure vessels?

Some common materials used to make pressure vessels include steel, aluminum, and composite materials. The material chosen depends on the type of pressure and contents the vessel will hold, as well as any safety and regulatory considerations.

5. What are the safety precautions when working with pressure vessels?

When working with pressure vessels, it is important to follow safety precautions to prevent accidents and injuries. These may include regular inspections, following proper operating procedures, using appropriate personal protective equipment, and ensuring the vessel is designed and built to industry standards.

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