Water is used in car engines(发动机) to keep them cool while they run, and if this water is allowed to freeze in winter, it can break the iron block of the engine. That is why antifreeze is necessary.Water freezes at 0℃. The usual kind of antifreeze will not freeze until the ...
it expands(膨胀).The force of water expanding is so great that it will break the hardest metal.Water is used in car engines(发动机) to keep them cool while they run,and if this water is allowed to freeze in winter it can break the iron block of the engine.That is why antifreeze is...
小题1:B小题2:D小题3:C小题4:B小题5:A 防冻液是一种液体，加入到水中可防止水结冰。当水结成冰的时候，它会膨胀。水膨胀的力很大，可以把最硬的金属涨破。这就是为什么在冬天汽车的引擎中加防冻液的原因。小题1:细节理解题。根据文章第一段三，四两行可知。小题2:细节理解题。根据文章第...
Antifreeze is a liquid(液体) that is added to water to keep it from freezing.When water freezes and turns to ice,it expands(膨胀).The force of water expanding is so great that it will break the hardest metal.Water is used in car e
it expands(膨胀).The force of water expanding is so great that it will break the hardest metal.Water is used in car engines(发动机) to keep them cool while they run,and if this water is allowed to freeze in winter it can break the iron block of the engine.That is why antifreeze is...
it expands(膨胀).The force of water expanding is so great that it will break the hardest metal.Water is used in car engines (发动机)to keep them cool while they run,and if this water is allowed to freeze in winter,it can break the iron block of the engine.That is why antifreeze is...
four parts of water and five parts ofANTI-antifreeze reduce this to -22℃.FREEZE②Alcohol is a kind of good antifreeze,but when the car is running, it becomes hotand the alcohol boils away,so it must be changed very often.Most people use antifreeze that does not boil away when the...
Ice recrystallization is a phenomenon observed as the increase in ice crystal size within an already frozen material. Antifreeze proteins (AFPs), a class of proteins capable of arresting ice crystal growth, are known to inhibit this phenomenon even at su
Antifreeze (commonly ethylene glycol or propylene glycol) is usually mixed with water in the radiator of a car. What is its function and how does it work? How can you prepare an ice bath with a temperature lower than 0^oC? How would you ...
What effect do you hypothesize freeze-thawing will have on lentils and why? How does vertical gel electrophoresis differ from horizontal gel electrophoresis? What is the purpose of each? Are the outcomes the same? What is the Thermic Effect of food? How do glycerol, antifreeze, and various con...