[neact] Re: Gas law related question
- From: CaryPQ@xxxxxxx
- To: neact@xxxxxxxxxxxxx
- Date: Wed, 22 Jul 2009 23:00:22 EDT
Jerusha,
This is a standard chemical engineering problem.
The pressure in the sealed vessel will be atmospheric plus the
vapor-pressure of water at that temperature, so at 100 degrees the pressure
will be
two atmospheres.
To find the pressure above that, consult the CRC Handbook of Chemistry
and Physics. Look up in the steam tables where the vapor-pressure of water
is listed and plotted. It will run up to at least 600 degrees (probably in
degrees Fahrenheit).
Chemical plants typically use superheated steam (obviously under great
pressure) for heating systems for reactor vessels, and so is piped
throughout the plant from a central boiler.
Tremendous catastrophic accidents have occurred in chemical plants in
the past as this technology developed, along with steam engines during the
Industrial Revolution.
As Carnot found, hotter higher-pressure steam resulted in great
increases in engine efficiency and power, and so that technology developed, too.
Hope this helps! Also check the AICHE website (American Institute of
Chemical Engineers).
BTW, that's my original degree -- from Michigan State.
Best,
Cary
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