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According to Swede Systems Flashover training it expands 4200 times its original volume. So one gallon of water, introduced to a 1200 degree room would expand to 4200 gallons of steam. I have been unable to confirm this as of yet however. Please elaborate if you have additional information. Thank you.

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Q: How much does steam expand at 1200 degrees?
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Related questions

How much does water expand when it turns to steam?

At 212 degrees Fahrenheit water expands approximately 1,700 its original volume when converted to steam.

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Water weighs 1kg per liter. If it is all turned to steam you will have 1kg of steam. Water expands to nearly 1700 times its original volume at 212 degrees.

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