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Posted: 5/28/2009 3:45:02 AM EDT
[#1]
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Is it as simple as 8.3#? Yup. Remember, conservation of mass. Now, as to volume, your gallon of water will make about 1,600 gallons of steam. |
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Posted: 5/28/2009 3:58:04 AM EDT
[#2]
Quoted: Quoted: Is it as simple as 8.3#? If the water is cold. If the water is hot (like 180 degrees F), it would be 8.1 lbs. Because liquid water changes density with temperature. Only the volume would change with temperature. The mass (thus the weight) would stay the same. ETA - I realized you are right. A gallon (which is what the OP was asking about) is different from a specific molar mass of water. |
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Posted: 5/28/2009 6:13:44 AM EDT
[#3]
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Is it as simple as 8.3#? If the water is cold. If the water is hot (like 180 degrees F), it would be 8.1 lbs. Because liquid water changes density with temperature. Actually if the water was cold, you would get less mass per unit of volume. Water loses density as it approaches the freezing point. That's why ice floats. NO! Ice floats because water expands (into a crystalline structure) as it changes from a liquid phase to a solid phase. Pretty much no other known substance decreases in density when changing phase from liquid to solid. And as far as the density of liquid water: Water is most dense at 4 degrees C, slightly less dense at or near freezing, and less dense as it gets heavier. Not an engineer (yet) This is not even wrong. I remember a list of them when I was a chemistry student. Don't remember what was on the list though...it's been a long time since college and I haven't worked in that field for over ten years. GH |
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Posted: 5/28/2009 6:28:17 AM EDT
[#4]
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Is it as simple as 8.3#? If the water is cold. If the water is hot (like 180 degrees F), it would be 8.1 lbs. Because liquid water changes density with temperature. Actually if the water was cold, you would get less mass per unit of volume. Water loses density as it approaches the freezing point. That's why ice floats. NO! Ice floats because water expands (into a crystalline structure) as it changes from a liquid phase to a solid phase. Pretty much no other known substance decreases in density when changing phase from liquid to solid. And as far as the density of liquid water: Water is most dense at 4 degrees C, slightly less dense at or near freezing, and less dense as it gets heavier. Not an engineer (yet) That's a hell of an argument you've got there. Did you read it? |
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