Hazards In The Kitchen Worksheets

Why you should know that the Coca Cola lost gas?

is classic, bought a soda and must be taken quickly so as not to squeeze out the remaining gas and syrup warmly, "why soda lose gas? "what can we do to not lose gas?

With this simple question we can learn a little physics and chemistry. Let's start by clarifying that soft drinks are carbonated water , or water to which is added carbonic acid and carbon dioxide (CO2) pressure.

The gas bottles are filled with the beverage under pressure, and then are closed to avoid losing that pressure which the gas is dissolved in the liquid. But when the pressure changes, opening the lid, the gas is released from its liquid captor.

of carbon dioxide in soft drinks, tend to be released at room temperature, and more as the temperature rises. But with the cold re-dissolved in the liquid, and spends more time there without release, so that the secret to not waste gas is to keep cold gas.

When shaking a soda the CO2 is released because the motion causes the gas molecules join together and turn the air (oxygen), and so to gather up the bubbles, allowing them to release the liquid more quickly.

This is what is called effervescence , which is exactly when the gas dissolved in the liquid is released as bubbles.

But if a gas that fell, or was busy inadvertently is left idle for a long period, and more if in a cold environment such as a refrigerator, gas re-integrate with the water as carbonic acid present in it draws carbon dioxide.

Another concern associated " why the gas is richer in glass bottles ?

For the gas. The glass holds more gas, because it is a little porous material, then the gas can not escape. Instead of plastic bottles (PET ) itself is porous and therefore permeable, so that over time become less gas, and if the container is exposed to high temperatures it loses even faster.

So the only recipe for that gas will not keep the gas is very cold. As for the gas will not be a need gas this gas pressure above the liquid, more pressure, the gas dissolved in the liquid.

Of course, when you open the bottle for the first time that excess gas was pressure is released, yes, the famous little sound of soda psssst.

The problem is that in order to regain that pressure, air pump does not work in there, mostly because the air is oxygen and nitrogen and the gas that makes soda is gaseous carbon dioxide. A

himself than to recover or keep that pressure should return to add carbon dioxide in the bottle, which is difficult unless the availability of these special containers for homemade soda.

do you think? Leave your comments or ReTwiteea this Post.