What causes a substance to have a low boiling point? Explain why alcohols of lower molecular weight are generally soluble in water but those of higher molecular weights are generally not. Why does methypropanoate have a lower boiling point compared to butanoic acid...
百度试题 结果1 题目Which of the following does not have a fixed boiling point?A.sulphurB.waterc.aird.chlorine 相关知识点: 试题来源: 解析 c 反馈 收藏
So, why have most of us been taught that the boiling point of water is constant? And, if it is not constant, how can it be used as a 'fixed point' for the calibration of thermometers? History of science has the answers.关键词:...
So, I wouldn’t drink water with 60 alcohol in it as ingesting it may pose life threatening health risks. On the other hand, in case you have no access to bottled water or can’t boil water, the Centers for Disease Control and Prevention (CDC) advise using a chemical disinfectant, ...
百度试题 结果1 题目沸水在多少度变成水蒸气? At what point does boiling water ___water vapour?相关知识点: 试题来源: 解析 turn off 反馈 收藏
Cooking invariably involves the boiling of water, as it’s an integral part of cooking. You put water in a container, keep it on the stove, and cover it (for maximum utilization of heat energy). However, when the water starts to make noise and the cover begins to tremble, you know th...
High heatis useful when you want to get the water to reach boiling temperature quickly. Once you've got where you want, reduce the heat to medium (for boiling) or medium-low (for simmering). Once the water is at a rolling boil, more heat will only make it boil away faster. ...
A dehumidifier usually has a removable plastic bucket for a reservoir; most buckets also have a place where you can hook up a hose so the collected water can drain straight into a floor drain or pump. This frees you from having to remember to dump out the water. But don't worry too ...
1. It raises theboiling pointof water in the pot This means that if you are making something super wet such as a stew, the pressure raises the boiling point to temperaturesas high as 250°F, whichallows the food to cook faster.
The second bottle might be used for bathing to stave off disease, an urgent but less immediate need. The third bottle could be used for a less urgent need, such as boiling some fish to have a hot meal, and on down to the last bottle, which the castaway uses for a relatively low pr...