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Originally Posted by roderickpsu
You are correct in both analyses. It would take longer for the water to boil, and the weight = m*g or the mass alone would be constant regardless of the phase of the compound. I have a Ph.D. in chemistry.
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These two links refer to what I am speaking about specifically:
http://dbhs.wvusd.k12.ca.us/webdocs/...ss-Energy.html
http://van.hep.uiuc.edu/van/qa/secti...0923112019.htm
...while this one is just good reading.
http://en.wikipedia.org/wiki/Conservation_of_mass
"The law of conservation of mass states that the mass of an isolated system will always remain constant, regardless of the processes acting inside the system."
Suppose that we use our handy-dandy e=MC^2 formula on an isolated system which is one cubic foot in size, and convert 1 gram of a 5 gram block of iron directly into energy. What you have just suggested is that the
mass of the closed system will be reduced by this change, which is clearly in violation of the Law of Conservation of Mass. By extension we must conclude that because energy has mass (even though a gram of energy would be quite a lot) adding it into a closed system would increase the mass of that system.