Sink or Float, Any other water like compounds ?

AI Thread Summary
The discussion revolves around finding a compound that, like water, is less dense in its solid state than in its liquid state. The original poster initially considered silicon dioxide but lacked conclusive density data. They later mentioned gallium as a potential candidate but clarified that they are specifically looking for compounds, not elements. Participants also jokingly discussed beer terminology and shared thoughts on hydrogen peroxide. The conversation highlights the challenge of identifying such compounds in chemistry.
bartieshaw
Messages
50
Reaction score
0
Im not sure if anything like this has been posted before, and I am not sure if this was the right place to post the question, ao i apologise in advance if i make anyone angry...

at the beginning of the year my lecturer posted the challenge to find another compound which, like water, was lese dense in its solide state than in its liquid state.

now this question is not for marks or extra credit or anything (just a slab of beer), and at the beginning of the year i became rather obsessed with the challenge...many hours searching the net. However, exams came around and i have only just recently thought about it again.

the best thing i could come up with at the time was silicon dioxide, it had been mentioned on many sites, but i couldn't conclusively provide evidence eg. Data sheets showing density both as solid and liquid...

so i post the question, can anyone here think of a compound, which like water has a solid state that is more dense than its liquid state...?
 
Physics news on Phys.org
A slab of beer? Do you buy it frozen? :bugeye:
 
Danger said:
A slab of beer? Do you buy it frozen? :bugeye:

Frozen beer should be less dense than liquid beer, shame it's not a compound as such. :smile:

Come to think of it, if I were given this challenge, the first thing I'd check up on is hydrogen peroxide. Anyone?
 
Last edited:
Danger said:
A slab of beer? Do you buy it frozen? :bugeye:


haha...
no in australia we call a case i think it would be for you (4 x 6 packs) a slab of beer...though i do love my beer cold :)
 
bartieshaw said:
haha...
no in australia we call a case i think it would be for you (4 x 6 packs) a slab of beer...though i do love my beer cold :)
Oh. That's what we Canuks call a 'flat', although cans also come in 12, 15, 24 or 30 packs that are a lot easier to carry. And my brand, Keiths, for some reason comes in 8-packs instead of 6's (with a little carry handle moulded in).
 
Back
Top