[AR] Re: CO2

  • From: David Gregory <david.c.gregory@xxxxxxxxx>
  • To: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx>
  • Date: Sat, 8 Aug 2015 07:29:26 -0700

The process is isenthalpic, so you know the final enthalpy and density.
Look up P and T on the NIST webbook.

On Fri, Aug 7, 2015 at 10:11 AM, John Dom <johndom@xxxxxxxxx> wrote:

· If I flash expand the 8 g liquid/gaseous CO2 in an evacuated 1 L
bottle by puncturing the cartridge (cartridge and bottle at 20°C prior to
the expansion) what will the gas temperature and pressure be in the bottle?

· If I flash expand the 8 g of CO2 in a cartridge in 1 L of water
(cartridge and water at 20°C prior to expansion) in a 1.2 L bottle, how
much will the 1 L water (now soda) temperature drop in °C immediately
after?
Next, what will the ullage gas CO2 pressure be immediately after and
after it heating up to 20°C again?



My 3rd question depends on the response I get.



Thanks,



jd





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