As well as why under what laws there is a process of heating of water in the conditions of terrestrial gravitation, speaks in textbooks by physics. But after the first space flights of many interests a question of behavior of this liquid in zero gravity. Whether it is possible to heat it? It appears, it is possible, but absolutely in a different way, not so, on Earth.
Instruction
1. In the conditions of zero gravity on any liquid including on water, only forces of a superficial tension work, so if it is provided to itself, i.e. will be extracted from a vessel in which it is stored, then will surely take spherical shape. By the way, in space where there is no gravity, water will not flow. You have to shake out it from capacity as some dense syrup.
2. The turned-out sphere or several such spheres freely floating in air, it is not so easy to place in a saucepan or a teapot for heating. They will be distributed on a surface of a vessel and from its internal walls will flow on external, shrouding in a water layer all vessel. What to do? Remember that water does not moisten those bodies which are covered with a layer of fat. Therefore to hold it in your capacity, it is necessary to grease edges with a thin layer of fat inside and outside.
3. The following problem - use of the heating device. If to use not electricity, and gas, then you will see that soon after fire the gas burner will fade. It is easy to explain it. When burning, nonflammable gases, including carbonic acid are formed. When there is a gravity, burning products, warm and easier, are forced out by inflow of fresh air. But in the conditions of weightlessness of it is not present, and carbonic acid with water vapor surround a flame, blocking access to fresh air. To solve this problem, you should blow surely in the place of burning to create the movement of gases.
4. It will be unusual to heat up in these conditions water too. On Earth there is such phenomenon as convection. When heating water density decreases, and its heated lower layer rises up, and its place is taken by less heated mass of water. Such continuous circulation of warm and cold layers leads to the fact that water temperature in a vessel gradually increases. But in the conditions of weightlessness of convection is not present. Heating of water leads to increase in the sizes of vials of steam, and they unite in one huge steam bubble below, quickly pushing out cold water from the top layers from a vessel. Therefore if you will provide to water in zero gravity to heat up without your intervention, then it, turning into foamy weight, will just get out of a saucepan. But if constantly and quickly to mix the heating-up water, then more or less evenly it will be possible to heat it after all. But it cannot boil since steam will manage to force out all water from a vessel still before it all begins to boil.