Osmosis, boiling and freezing point, surface tension, salinity and temperature distributions

Osmosis, boiling and freezing point, surface tension, salinity and temperature distributions.

Osmosis, boiling and freezing point, surface tension, salinity and temperature distributions, are strongly related one another. I am not to write a technical post on all of it, because there are loads of them already written that you can search on your own in the quest for some solid basis onto which to present your recommendations, advises and directives.

Instead of that, I will explain all of it in the simplest visual way, so that everybody has to admit the overwhelming data about it and do something right away, which I think some are already doing, and it would be advisable, once mended, if it does, to let the whole world know what has happened, because if it is not done this way, it will soon happen again.



It is a process which drives water (solvent) towards the part of dissolutions (or solutions) which has more salt (solute) concentration. In this design you have above this paragraph, salt would be the white circles, and water the pink coloured area. The arrow shows the direction (gradient) of the flowing liquid. The red dashed line is a surface separating the two different in salinity parts of the liquid.

membrane like behaviour

In the above design you can see a potato osmoscope you can easily make yourselves at home by carving a hole inside a potato, place the carved potato (peeled if you are in a hurry) fitted inside a transparent recipient to see the process occur clearly, add tap water on the outside part of the ‘potato division’ and also on the inside, taking good care the water level is the same on both sides, then add sugar, salt, or any other solute of your choice: in a few minutes you will see osmosis process driving water naturally inside the more concentrated dissolution, in this case inside the carving in the potato.

osmosis potato


This is a photograph a scientist made on an experiment he carried out to demonstrate how salinity concentrations works on living creatures like.. er… for instance, we humans, but he used potatoes for his test.

Temperature has an effect on the speed and saturation level on all substances, that is widely known. As a home-made scale experiment, you can take two sachets of  sugar and two glass cups with the same amount of water, then heat up one of the cups, and finally pour the sachets content one into the cold and the other into the hot water. You will see how much more quickly the dissolution process is carried out in the hot than in the cold water. You can take two ice-cubes out of the freezer and put some salt in one of them whilst leaving the other interact with atmosphere on its own. You will see how much quicker the salted cube melts than the non-salted one.

Boiling occurs when partial pressures of (air-water in this case) fluids equal one another. Adding salt (solute) to a liquid ‘covers’ its surface with ‘white circles’, this makes the evaporation process slower, thus temperature in which bubbles form is higher in salty (seawater) than in still water.

Humans are not the measure of all things in the Universe. Here you are a little piece of the Earth’s crust natural semipermeable membranes.



Anyone who likes plants and knows about their needs and paces, would have observed the earth in a plant-pot shrinks when it is dry, and swells when it is wet with water.  In addition to this you can see how when the earth is really dry it does not absorb water, it takes a while for the earth to be in contact with water so that the earth into the plant-pot eventually lets water pass through.



This is a design which shows the structure of soil when it is not modified. It is visually similar to the structure of skin, or the membranes in our heads which preserve the brain from direct contact with the craneum.

The planet Earth is a place in the Universe on which we humans live. Industries have been pouring solutes boosting natural pace for the solutes releasing on it since Industrial Revolution, that’s more or less 250 years ago.

‘Experts’ put nuclear power plants in traditional secure geological places like, Fukushima, Japan, for instance… Obviously and unfortunately I am being a bit ironic right now. Do you still believe and trust experts criteria on energy industries matters?

Now go deny it, and call me (or most of us) liar (s) or ignorant (s).

Acerca de María Cristina Alonso Cuervo

I am a teacher of English who started to write this blog in May 2014. In the column on the right I included some useful links and widgets Italian is another section of my blog which I called 'Cornice Italiana'. There are various tags and categories you can pick from. I also paint, compose, and play music, I always liked science, nature, arts, language... and other subjects which you can come across while reading my posts. Best regards.
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