Category:catering food

Question:
boil water in the water in the gas bubbles emerge in what is gas? ?

Answer:
boiling in the liquid surface and internal simultaneous vaporization process. Vaporization of the liquid surface when the water vapor directly into the air, evaporation within the house, they will form a bubble, so water is boiling, the bubble is mainly water vapor.

, of course, the water will dissolve a small amount of other gases, mainly oxygen and carbon dioxide, of course, may also include a very small amount of hydrogen sulfide, nitrogen and methane. When the pressure is constant, the solubility of gas decreases with increasing temperature. Therefore, in the water heating process, there will be meager air bubbles emerge from the bottom of the vessel, but in the water boiling before, these dissolved gases is almost completely overrun, so open water when the water vapor bubbles on the left.

Answer:
steam + carbon dioxide

Chinese:烧开水时水中冒的泡泡中的气体是什么？？

类别: 餐饮食品

问题:
烧开水时水中冒出的泡泡中的气体是什么气体？？

回答:
沸腾是在液体表面和内部同时发生的汽化过程。液体表面发生汽化时，水蒸气可以直接进入空气中，内内部汽化时，就会形成气泡，所以水在沸腾时，气泡中主要是水蒸气。

当然，水中还会溶解其他少量的气体，主要是氧气和二氧化碳，当然也可能包括极少量硫化氢、氮气和甲烷等。当压强一定时，气体的溶解度随着温度的升高而减小。所以，在水加热的过程中，会有微少的气泡从容器底部冒出来，但是在水沸腾以前，这些溶解的气体几乎已经xx溢出，所以，水开时，气泡中就剩下水蒸气了。

回答:
水蒸气+二氧化碳