How to measure the volume of your bathtub: - Fill with cold water - Heat electrically with known constant power - Measure rate of temperature change
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ok so, try the following experiment. put boiling water into an *open* thermos flask. heat loss through conduction is minimal, so almost everything you see is heat loss due to water's immense heat of evaporation, and evaporate it does
I could try to find the point where I add constant electrical power without change in water temperature, and subtract that power from what I add, but I don't expect much loss since I'm trying to heat water from ~8 C to ~18 C in a closed humid and electrically heated room.
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ohhh, yeah, with that temperature differential it would work way better.
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