endothermic reaction

简明释义

吸热反应

英英释义

例句

1.The melting of ice is an endothermic reaction (吸热反应) because it requires heat to change from solid to liquid.

冰的融化是一个endothermic reaction（吸热反应），因为它需要热量从固态转变为液态。

2.When ammonium nitrate dissolves in water, it undergoes an endothermic reaction (吸热反应) that cools the solution.

当硝酸铵溶解在水中时，它会经历一个endothermic reaction（吸热反应），使溶液降温。

3.Baking soda reacts with vinegar in an endothermic reaction (吸热反应), absorbing heat and creating a cooling effect.

小苏打与醋反应时发生了一个endothermic reaction（吸热反应），吸收热量并产生冷却效果。

4.In an endothermic reaction (吸热反应), energy is absorbed from the surroundings, resulting in a temperature decrease.

在一个endothermic reaction（吸热反应）中，能量从周围环境中吸收，导致温度下降。

5.Photosynthesis is an example of an endothermic reaction (吸热反应) where plants absorb sunlight to convert carbon dioxide and water into glucose.

光合作用是一个例子，属于endothermic reaction（吸热反应），植物吸收阳光将二氧化碳和水转化为葡萄糖。

作文

In the world of chemistry, reactions can be classified into two main categories: exothermic and endothermic reactions. An endothermic reaction is a type of chemical reaction that absorbs energy from its surroundings, typically in the form of heat. This concept is crucial for understanding various natural processes and applications in everyday life. To grasp the significance of endothermic reactions, we must explore their characteristics, examples, and implications in both science and industry.One of the defining features of an endothermic reaction is that it requires an input of energy to proceed. During such a reaction, the total energy of the products is greater than that of the reactants. This energy difference is what drives the reaction forward. A classic example of an endothermic reaction is the process of photosynthesis, where plants absorb sunlight to convert carbon dioxide and water into glucose and oxygen. In this case, the energy from sunlight is essential for the reaction to occur, demonstrating how vital endothermic reactions are for life on Earth.Another common example of an endothermic reaction is the dissolution of ammonium nitrate in water. When ammonium nitrate is added to water, it absorbs heat from the surroundings, resulting in a temperature drop in the solution. This property is utilized in instant cold packs, which are often used to treat injuries. By breaking the inner pouch containing ammonium nitrate, the chemical dissolves in water, creating a cooling effect that helps reduce swelling and pain.The implications of endothermic reactions extend beyond just biological and medical applications. In the field of materials science, these reactions play a crucial role in processes such as the production of certain polymers and the synthesis of various compounds. Understanding how to control and utilize endothermic reactions can lead to advancements in technology and manufacturing.Moreover, endothermic reactions are also significant in environmental science. Many climate-related processes involve endothermic reactions, such as the melting of ice and the evaporation of water. These reactions require heat, which can affect local climates and ecosystems. As global temperatures rise due to climate change, the rates of these endothermic reactions may increase, leading to further environmental changes.In conclusion, endothermic reactions are a fundamental aspect of chemistry that plays a vital role in various natural processes and practical applications. From supporting life through photosynthesis to enabling technological advancements, the ability to absorb energy is essential for numerous reactions. By understanding endothermic reactions, we gain insight into both the natural world and the innovations that shape our daily lives. As we continue to study and harness these reactions, we can better appreciate their importance and potential for future discoveries.

在化学的世界里，反应可以分为两大类：放热反应和吸热反应。吸热反应是一种化学反应，它从周围环境中吸收能量，通常以热的形式存在。这个概念对于理解各种自然过程以及日常生活中的应用至关重要。要掌握吸热反应的重要性，我们必须探讨它们的特征、例子以及在科学和工业中的影响。吸热反应的一个定义特征是它需要输入能量才能进行。在这样的反应中，产物的总能量大于反应物的能量。这种能量差异推动反应向前发展。一个经典的吸热反应的例子是光合作用，在这个过程中，植物吸收阳光，将二氧化碳和水转化为葡萄糖和氧气。在这个例子中，阳光的能量对于反应的发生至关重要，展示了吸热反应对地球生命的重要性。另一个常见的吸热反应的例子是硝酸铵在水中的溶解。当硝酸铵被加入到水中时，它从周围吸收热量，导致溶液温度下降。这一特性被用于即时冷敷包，通常用于治疗伤害。通过打破内部含有硝酸铵的袋子，化学物质溶解在水中，产生冷却效果，有助于减少肿胀和疼痛。吸热反应的影响不仅限于生物和医疗应用。在材料科学领域，这些反应在某些聚合物的生产和各种化合物的合成过程中发挥着至关重要的作用。理解如何控制和利用吸热反应可以推动技术和制造业的进步。此外，吸热反应在环境科学中也很重要。许多与气候相关的过程涉及吸热反应，例如冰的融化和水的蒸发。这些反应需要热量，可能会影响局部气候和生态系统。随着全球气温因气候变化而上升，这些吸热反应的速率可能会增加，导致进一步的环境变化。总之，吸热反应是化学的一个基本方面，在各种自然过程和实际应用中发挥着重要作用。从通过光合作用支持生命到促进技术进步，吸收能量的能力对许多反应至关重要。通过理解吸热反应，我们可以深入了解自然界和塑造我们日常生活的创新。随着我们继续研究和利用这些反应，我们可以更好地欣赏它们的重要性和未来发现的潜力。