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Nicholas Harris
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And by how much would the balloon expand, if at all?
It would totally depend on the material that the balloon was made of (how it could withstand internal pressure) and where, in space, you did the experiment. The temperature would be determined by thermal equilibrium with the received Sunlight and radiated energy. If it ended up at 'room temperature (not impossible) then it could boil if the pressure in the balloon were around 0.02Atmospheres. See this wiki link for a list of vapour pressures at 'typical' Earth temperatures.Nicholas Harris said:And by how much would the balloon expand, if at all?
Were you referring to this one?: Vapour pressure of watersophiecentaur said:It would totally depend on the material that the balloon was made of (how it could withstand internal pressure) and where, in space, you did the experiment. The temperature would be determined by thermal equilibrium with the received Sunlight and radiated energy. If it ended up at 'room temperature (not impossible) then it could boil if the pressure in the balloon were around 0.02Atmospheres. See this wiki link for a list of vapour pressures at 'typical' Earth temperatures.
I don't think you've answered the question, but you've certainly given good clues on how to solve it.If the pressure were limited by the balloon envelope then there would be a mixture of vapour and water droplets (held together by molecular forces) in equilibrium when equilibrium is reached. This is what happens on Earth; clothes dry when the partial pressure of water vapour in the air is less than the vapour pressure of the water.
Hope this wasn't a homework question; I have more or less answered it for you.
Nicholas Harris said:If you threw a warm water balloon into space, would it boil, and by how much would the balloon expand, if at all?
Thanks. I forgot to press the link button - durr!OmCheeto said:Were you referring to this one?: Vapour pressure of water
The warm water balloon would initially expand due to the decrease in pressure in space, but eventually it would reach equilibrium and retain its original size.
Yes, the water inside the balloon would boil because there is no atmospheric pressure to keep it in liquid form.
The water would boil almost immediately upon entering the vacuum of space, as there is no pressure to keep it in liquid form.
No, the balloon would not burst because it is designed to withstand changes in pressure. However, it may eventually burst due to the expansion of the water inside.
The water vapor would disperse into space and eventually freeze due to the low temperatures. It would also contribute to the formation of ice crystals in space.