[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

**To**:**Aquatic-Plants at actwin_com****Subject**:**Re: CO2 regulators****From**:**"Roger S. Miller" <rgrmill at rt66_com>**- Date: Mon, 2 Oct 2000 14:19:32 -0400 (edt)
- In-Reply-To: <200010021948.PAA18065 at actwin_com>

On Mon, 2 Oct 2000, Paul Sears wrote: > The absolute pressure is about 100 kPa higher (15 psi > or so). The other wrinkle is that CO2 in equilibrium with the liquid is > at a high enough pressure to act as anything but an ideal gas, so the answer > to the calculation will be very approximate. According to my table, saturated CO2 at standard temperate (25 C) is 238.7 kg/cubic meter. From the ideal gas law I get the density of CO2 at 10 psig (1.7 atmospheres, absolute) to be 4.036 kg/cubic meter; at 25 psig I get 4.923 kg/cubic meter. In going from roughly 900 psig to 10 or 25 psig at the same temperature CO2 expands to (respectively) 78 to 48 times its original volume. Roger Miller

- Prev by Date:
**Newbie Questions - Long** - Next by Date:
**Re: CO2 regulators** - Prev by thread:
**Re: CO2 regulators** - Next by thread:
**Re: CO2 regulators** - Index(es):