Timeline for Would a gas "weigh" less than a liquid if they have the same mass?
Current License: CC BY-SA 3.0
18 events
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| Mar 3, 2017 at 3:53 | comment | added | Greg | Given 2 boxes of the same dimension, the liquid or gaseous phases are irrelevant. In the liquid box, you will have a tiny spec of liquid gas, and the rest will be very buoyant vacuum. They will have the same average density. | |
| Mar 1, 2017 at 9:46 | history | edited | coconut | CC BY-SA 3.0 |
added 6 characters in body
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| S Mar 1, 2017 at 0:19 | history | suggested | Fine Man | CC BY-SA 3.0 |
improved formatting
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| Mar 1, 2017 at 0:06 | review | Suggested edits | |||
| S Mar 1, 2017 at 0:19 | |||||
| Feb 28, 2017 at 20:10 | comment | added | njzk2 | @YashasSamaga only if the steam box is bigger. which in the question it isn't | |
| Feb 28, 2017 at 13:38 | comment | added | Eph | @Chris good point. I decided to give an answer which addresses the buoyancy. | |
| Feb 28, 2017 at 12:47 | comment | added | Chris | @Rick: From the question: " I acquired two weightless boxes of the same dimensions" (emphasis mine). So talking about the bigger box is meaningless. | |
| Feb 28, 2017 at 12:46 | comment | added | Eph | @YashasSamaga The buoyant forces are dependent on the volume of the box, so the bigger box will have more buoyant lift force. Additionally, the OP specified weightless boxes, so the buoyant force will definitely dominate the weight of the box. In the case of the steam it will actually cause the box to float. | |
| Feb 28, 2017 at 12:36 | comment | added | Yashas | How? The gas is inside the box. Buoyancy is irrelevant here. The gas cannot affect its own enclosure. When I said the box must be heavy, I meant the weight must be large enough that the buoyant force due to atmospheric air won't have any effect on the box. | |
| Feb 28, 2017 at 12:34 | comment | added | T. Verron | @YashasSamaga If we take into account buoyancy, 1kg of steam does exert less force on a scale than 1kg of liquid water. The weight of the box is irrelevant. | |
| Feb 28, 2017 at 9:52 | comment | added | Yashas | @JamesBarrass It is reasonable to assume that the box is heavy enough to prevent it from lifting off. | |
| Feb 28, 2017 at 9:45 | comment | added | James | Does this account for the density of air outside the box? given the box must be > 1L and the temperature is > 100°C isn't there buoyant force from air pressure ? | |
| S Feb 28, 2017 at 9:35 | history | suggested | BLAZE | CC BY-SA 3.0 |
Fixed typo's
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| Feb 28, 2017 at 9:32 | review | Suggested edits | |||
| S Feb 28, 2017 at 9:35 | |||||
| Feb 28, 2017 at 9:10 | history | edited | coconut | CC BY-SA 3.0 |
added 339 characters in body; edited body; deleted 18 characters in body
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| Feb 28, 2017 at 9:06 | history | undeleted | coconut | ||
| Feb 28, 2017 at 9:06 | history | deleted | coconut | via Vote | |
| Feb 28, 2017 at 9:04 | history | answered | coconut | CC BY-SA 3.0 |