Timeline for Would a gas "weigh" less than a liquid if they have the same mass?

Current License: CC BY-SA 3.0

8 events

when toggle format	what		by	license	comment
Jun 11, 2020 at 9:33	history	edited	CommunityBot		Commonmark migration
Mar 2, 2017 at 17:40	history	edited	Eph	CC BY-SA 3.0	typo
Mar 1, 2017 at 22:02	comment	added	KC Baltz		I like how you set this up because it leads to the question, "if I take a box with 1L of liquid water and apply heat until it boils, do I make it any lighter?" My intuition is that it wouldn't, but this is in conflict with the intuition that a box full of gas is lighter than a box full of liquid, which hopefully helps with understanding.
Mar 1, 2017 at 20:53	history	edited	Eph	CC BY-SA 3.0	Edited to better reflect the edited question.
Feb 28, 2017 at 14:44	history	edited	Eph	CC BY-SA 3.0	Moved boiling stuff to note at the bottom.
Feb 28, 2017 at 14:44	comment	added	Eph		@YashasSamaga thanks for pointing out that the boiling stuff really doesn't belong in the main body of the answer. I moved it to the end as a footnote. I still feel that comparing air to vacuum is really important to getting at the idea that gases have mass, as it's the everyday experience with buoyant air that gives people the intuition that gases don't have weight, and it's that intuition that we're trying to alter. So pointing out that it's our atmosphere that makes gasses seem weightless is an integral part of answering this question.
Feb 28, 2017 at 13:38	comment	added	Yashas		While you are certainly correct that the water would be boiling if there is nothing above the water surface, this was not what the OP was looking for. The OP is having difficulty understanding if the gas has weight. The OP did mess up the question and multiple users have asked for clarification. From the last paragraph of the question, you can easily infer what the OP is actually looking for.
Feb 28, 2017 at 13:34	history	answered	Eph	CC BY-SA 3.0