Why does a cool beer freeze instantly after opening the lid?
1, liquor temperature is 0 DEG C, because the bottle in the refrigerator inner pressure is higher, which can not be completed ice beer;2, open the cover, a bottle of wine after the release of pressure inside, at atmospheric pressure, because the wine reached the freezing point, and ice;
Because beer contains a lot of nitrogen, when opening, the bottle of nitrogen out of the bottle, the internal pressure is relatively high, gas external work, their volume expansion can be reduced, the temperature is also reduced
