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Anonymous Poster

PHASE CHANGE

04/03/2010 3:40 PM

Hi! I will be obliged if some one may help me in solving my puzzle.My question is "If in a closed system water is heated to build up pressure approximately 65barg then will it become steam or will it remain in liquid state?

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Guru

Join Date: Jan 2010
Posts: 2446
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#1

Re: PHASE CHANGE

04/03/2010 4:19 PM

heated to what temprature.?

i assume you mean bar

a barg is a large metal boat

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Guru

Join Date: Jan 2010
Posts: 2446
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#2

Re: PHASE CHANGE

04/03/2010 5:39 PM

http://science.jrank.org/pages/983/Boiling-Point.html

Modern cars, like many of those built after 1955, started using pressurized cooling systems. The benefit was that,

for every pound of pressure created in the cooling system, the boiling point of the water was raised by three degrees

. By sealing up the cooling system, and adding pressure, the boiling point of the water was raised. Then, the engine could be operated at a higher temperature and operated more efficiently. Today, most modern cars use a 16-lb. cap to raise the boiling point 48 degrees higher than the normal 212 degree boiling point

35barequals507.6psi

so based on 3 degrees raise of presure boiling point would be raised by 1522.8 degrees that would be 1622.5 degrees ( wouldnt that melt the tanks)

wow that would be hot.

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