Recent content by zeebuck

Tracking pressure as a function of volume. Another question I have is how does the boiling point of the water change over the increase of temperature/pressure of the system? Because what I have read is the water will boil when the vapor pressure reaches the atmospheric pressure but in the closed...

any units are fine to work in, converting across them is not too complex. Absolute pressure is also good. I am simply using these calculations to estimate/monitor the pressure across the temperature to make sure I don't exceed the system limits.

the pressure do to water vapor at 95 C is .83421 atm the pressure of the atmospheric air at 95 C is 1.256 atm this results in a total pressure of 2.09 atm Does the increase in pressure of the atmospheric air have any effect on the vapor pressure of water? Also with the increase of pressure...

I am sorry for not being clear. Step 1- When I put the water in and begin to increase the temperature, I need to calculate the pressure to ensure everything is operating at safe levels. My main confusion here is as the temperature increases the vapor pressure increase but following PV=nRT the...

Chet, Thanks for the quick reply! Yes there is air in the head on the container. For example the container is 500mL and only 300mL of water is poured in before being closed. Once the valve is opened the pressure from the gas pushes the hot water through a tube at the bottom of the container...

I am working on a DIY project and want to understand the system/mathematical model of a traditional steam espresso machine. How I have started to think about the problem is a closed container with liquid and gas. At room temperature I know the vapor pressure of the water. As I increase the...