A. chemical reaction B. physical change C. electrical reaction D. biological change 相关知识点: 试题来源: 解析 B。解析:水沸腾是物理变化,只是状态改变,没有新物质生成。选项 A 化学反应会有新物质生成,不符合。选项 C 电反应与题目无关。选项 D 生物变化不符合水沸腾的情况。反馈...
No, boiling water is NOT a chemical reaction, but it is a physical change. When water, H2 O, is in liquid form, it can be heated to a boil. Boiling...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer...
A) Melting Iron B) Boiling alcohol C) Evaporating Water D) Burning Coal Changes in Matter: Changes in matter can be classified as either physical or chemical change. Physical changes are those that do not involve changes in the chemical compositio...
Figure 2. Change in the heat flow density q and the heat transfer coefficient α for water boiling at atmospheric pressure as a function of the thermal head ΔT T T,: (A) region of weak bubble formation, (B) nucleate boiling, (C) transitional boiling, (D) stable film boiling When the...
Boiling is anintensive property. An intensive property is a property that does not change when the amount of a substance changes. For example, the boiling points of 50 grams and 100 grams of water are the same, i.e. 100 degrees celsius. Yet, some factors decide the boiling point of a ...
For instance, corroded or damaged plumbing might allow lead to leak into the water system, contaminating the water supply and posing a risk of physical damage. The acceptable level of TDS in drinking water supplies is determined by the WHO and BIS in India. BIS sets the standard and treatment...
Why does water have such an anomalously large boiling point? View chapter Explore book Chemical and physical properties of hydrocarbons James G.SpeightPhD, DSc, PhD, inHandbook of Industrial Hydrocarbon Processes (Second Edition), 2020 5.1Boiling point ...
New research found that boiling water may be able to remove up to 90 percent of microplastics. Find out why that's important and the dangers of plastics.
Mechanical engineering On using film boiling to promote chemical change of organic liquids CORNELL UNIVERSITY C. Thomas Avedisian ChoiSung RyelThis study presents an experimental demonstration of a chemical reactor based on film boiling. Film boiling is established around a horizontal tube that is ...
How does evaporation affect the composition of ocean water? Why does water cool when it evaporates? What causes evaporation? Why does raising the temperature cause a liquid to boil? How are physical and chemical weathering alike? Where does evaporation come from?