Questions tagged [liquids]
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19
questions
1
vote
0answers
36 views
Water replacement for pressure-testing [closed]
Due to circumstance, our Data Centre build has some delays and it currently looks like we're going to have to perform a hydrostatic test of our sprinkler system with live computers in it.
As I have ...
0
votes
0answers
27 views
Liquid alternative to alcohol to lower density of water
I am trying to create a suspension of polypropylene particles in a water based liquid. I want the density of the liquid to be more than or equal to the density of polypropylene (855 - 946 kg/m3) so ...
2
votes
1answer
78 views
What happens when a super-critical fluid is compressed?
Suppose that I have some substance with a critical temperature of 20°C. That means above that temperature, the substance exists neither as a gas nor a liquid, but instead as a super-critical fluid. ...
0
votes
3answers
2k views
Are all volatile liquids combustible?
I realized that liquids like petrol, kerosene and even perfumes are combustible when they are volatile.
Could that be the reason why water is not combustible is because it is not volatile?
Are ...
1
vote
0answers
37 views
Which DFT functional is best for predicting macroscopic properties of molecular liquids?
Which DFT functional (KS-DFT, to be more specific) performs best at predicting macroscopic properties (density, surface tension, boiling point, relative permittivity etc.) of molecular liquids (...
1
vote
1answer
30 views
Boiling point elevation and liquid solutions
$\pu{1 L}$ of an aqueous solution of urea having density $\pu{1.06 g mL-1}$ is found to have elevation in boiling point $\Delta T_\mathrm{b} = \pu{0.5 °C}.$ If the temperature of this solution is ...
5
votes
3answers
670 views
What do the horizontal lines in a P-V phase diagram mean?
I have been studying phase diagrams of pure substances, and for a substance such as carbon dioxide for example, it's diagram looks something like this:
The horizontal lines in the liquid phase puzzle ...
1
vote
1answer
50 views
Why does bromine increase the viscosity of olive oil? [closed]
Does bromine bond to the carbon in unsaturated fatty acids and break the double bonds between oxygen and carbon? Does this increase the viscosity of olive oil?
Could someone give an elaborated ...
13
votes
1answer
1k views
What is the least dense liquid under normal conditions?
What is the least dense liquid under normal conditions, room temperature, one atmosphere of pressure, doesn't combust upon contact with air, also wouldn't kill a human just for being in the same room ...
0
votes
2answers
126 views
What happens when mixing elemental mercury with sodium hypochlorite solution [closed]
Say you spilled elemental mercury from a thermometer and used household bleach on it, what would be the reaction if any?
-1
votes
2answers
97 views
Liquid Versus Aqueous States? [closed]
I am studying ionic equations and have encountered the statement of the phase of matter in the equation since ionic substances tend to react differently based on their phase.
I know that
(l) state ...
19
votes
2answers
823 views
Can a stoichiometric mixture of oxygen and methane exist as a liquid at standard pressure and some (low) temperature?
This answer to the question Pre-mixing cryogenic fuels and using only one fuel tank written by a non-chemist (me) begins with:
At STP:
LOX's boiling point is 90.19 K
Methane's freezing ...
-2
votes
3answers
431 views
Why does increase in pressure cause a increase in boiling point [closed]
When we increase the atomospheric pressure pressure above the solution , the boiling point of a solution increases. Why does this happen?
-1
votes
1answer
73 views
Is sodium hypochlorite 100% concentrate possible?
Popular bleaching brands like Clorox contain liquid sodium hypochlorite in small concentrations, ranging from 5-12.5% (is this a mass/volume, mass/mass, or volume/volume concentrate?).
Is it possible ...
3
votes
1answer
77 views
Model of an ideal liquid in chemistry
In chemistry there are ideal models/concepts of ideal crystal, ideal gas and even ideal solution, but there is no model/concept of ideal liquid.
In physics (fluid dynamics, to be precise) there is a ...
8
votes
4answers
1k views
Ionic compound having highest solubility in water
Which ionic compound has highest solubility in water? I can find CsBr having highest solubility with 1230 g/L at 25 °C.
Note: compounds like ethanol are soluble to any extent in water, but they are ...
0
votes
0answers
14 views
Computational method to model the interactions between a liquid, a solid surface and particles on it?
I’m looking for a way to model the interactions between a liquid, a surface and various particles over the surface, in order to simulate the cleaning of said surface with different substances.
My ...
1
vote
0answers
18 views
Explanation of phase changing/solid and liquid water existing in the same container at same temp [closed]
I was trying to explain to a friend the other day why when ice and water are in the same container, the water is 32 degrees Fahrenheit or 0 celcius, but not frozen, because the ambient temp is above ...
3
votes
1answer
342 views
Properties of azeotropes
Consider two liquids with vapour pressures in pure form being ${P^o}_A$ and ${P^o}_B$. ${P^o}_B >{P^o}_A$ which implies liquid B is more volatile. If the liquids formed an ideal solution, then a ...
