Should you boil hot or cold water? Cold water boils faster than hot water. There is, however, a good reason to use cold water instead of hot for cooking: hot water will contain more dissolved minerals from your pipes, which can give your food an off-flavor, particularly if you reduce ...
That turns out to be surprisingly difficult, not least because the statement “hot water freezes faster than cold” is ill-defined. In a recent paper, Jeng suggests a more precise wording (arXiv.org/abs/physics/0512262v1): “There exists a set of initial parameters, and a pair of tempera...
When we boil water, it turns into steam. Why does this happen? A. Water absorbs cold. B. Water releases heat. C. Water absorbs heat. D. Water is not affected by heat. 相关知识点: 试题来源: 解析 C。水煮沸变成蒸汽是因为水吸收了热量。A 选项水吸收冷错误;B 选项水释放热量不是变成蒸汽...
When you boil an egg, a physical change actually occurs that causes it to harden. The time it takes to hard-boil an egg depends on the size of the egg. Give the egg time to reach room temperature, usually about 12 to 15 minutes. Place the egg(s) in a pan of water and wait for...
1、Most countries in the world ___(承认)Taiwan as one part of China.2、I an in a difficult___(境况)and I don't know what to do.3 After water is heated for a short time.it begins to boil r___4 In the 1600's.shakespeare made use of wide v___than ever before.5 He alwany...
Why does water boil at a higher temp then NH_3 when they are both dipoles? Using your knowledge about the qualities of water, explain how you can drink coffee that is too hot to hold in your hand. Why does a cola soft drink need to be decarbonated before ...
The atmosphere has its own pressure. Likewise, the liquid when boil have pressure of its own. The point at which both these pressures become equal, that point is said to be a boiling point of that liquid.Answer and Explanatio...
designed to handle high currents. When a large current passes through the heating element, it heats up, and the kettle uses this heat to boil water. The simplest design puts the heating element in direct contact with water, maximizing the heat transfer between the element and your water. ...
Powdered Gelatin must first be dissolved in cold water, then have hot water added to rehydrate it. When it cools, it sets and forms a jelly. Gelatin doesn't
And when you pour water into a pot, the water doesn’t completely fill those scratches and dents, so air gets trapped in there and forms those tiny bubbles. Then, when you apply heat, and the water gets hot enough to boil, those bubbles will lucreate as I just described. And, once ...