endothermic reaction

简明释义

吸热反应

英英释义

例句

1.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，它经历了一个 endothermic reaction 吸热反应，使溶液变凉。

2.The melting of ice can be considered an endothermic reaction 吸热反应 because it requires heat to change from solid to liquid.

冰的融化可以被视为一个 endothermic reaction 吸热反应，因为它需要热量从固态变为液态。

3.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，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。

4.In cooking, making homemade ice cream involves an endothermic reaction 吸热反应 as the ice absorbs heat from the mixture.

在烹饪中，制作自制冰淇淋涉及一个 endothermic reaction 吸热反应，因为冰从混合物中吸收热量。

5.In a typical chemistry class, students learn that an endothermic reaction 吸热反应 absorbs heat from its surroundings.

在典型的化学课堂上，学生们了解到，endothermic reaction 吸热反应 从周围环境中吸收热量。

作文

In the realm of chemistry, reactions can be classified into two main categories: exothermic and endothermic. An endothermic reaction is a process that absorbs energy from its surroundings, usually in the form of heat. This absorption of energy results in a temperature drop in the surrounding environment, which can be quite fascinating to observe. Understanding endothermic reactions is crucial for students and professionals alike, as they play a significant role in various biological and chemical processes.To illustrate the concept of an endothermic reaction, let’s consider the example of photosynthesis. During this process, plants absorb sunlight, which provides the energy needed to convert carbon dioxide and water into glucose and oxygen. The energy absorbed from the sunlight is essential for the formation of chemical bonds in glucose, making photosynthesis a classic example of an endothermic reaction. Without this energy intake, life on Earth would not be sustainable, as plants are at the base of the food chain.Another common example of an endothermic reaction is the dissolution of ammonium nitrate in water. When ammonium nitrate is added to water, it dissolves and absorbs heat from the water, resulting in a noticeable decrease in temperature. This principle is often applied in instant cold packs used for injuries, where the endothermic reaction provides a cooling effect to reduce swelling and pain.The significance of endothermic reactions extends beyond just academic interest; they have practical applications in various fields. In the field of thermodynamics, understanding these reactions helps scientists design better cooling systems and improve energy efficiency. In environmental science, endothermic reactions are vital for understanding phenomena such as climate change and the behavior of gases in the atmosphere.Moreover, endothermic reactions are also pivotal in industrial processes. For instance, in the production of certain chemicals, the absorption of heat is necessary to drive the reaction forward. Industries often harness these reactions to create products that require precise temperature control, ensuring quality and safety.In conclusion, the concept of an endothermic reaction is fundamental to the study of chemistry and its applications in real-world scenarios. By absorbing energy, these reactions facilitate critical processes in nature and industry. As we continue to explore the intricacies of chemical reactions, the importance of understanding endothermic reactions cannot be overstated. They not only help us comprehend natural phenomena but also enable technological advancements that improve our daily lives.

在化学领域，反应可以分为两大类：放热反应和吸热反应。吸热反应是一种从周围环境中吸收能量的过程，通常以热量的形式出现。这种能量的吸收导致周围环境温度下降，这一点非常有趣。理解吸热反应对于学生和专业人士来说至关重要，因为它们在各种生物和化学过程中发挥着重要作用。为了说明吸热反应的概念，让我们考虑光合作用的例子。在这个过程中，植物吸收阳光，这提供了将二氧化碳和水转化为葡萄糖和氧气所需的能量。阳光吸收的能量对葡萄糖中的化学键形成至关重要，使光合作用成为经典的吸热反应例子。如果没有这种能量摄入，地球上的生命将无法维持，因为植物是食物链的基础。另一个常见的吸热反应例子是硝酸铵溶解在水中。当硝酸铵加入水时，它溶解并从水中吸收热量，导致温度明显下降。这个原理通常应用于用于伤害的即时冷敷包中，其中的吸热反应提供了降温效果，以减少肿胀和疼痛。吸热反应的重要性不仅限于学术兴趣；它们在各个领域都有实际应用。在热力学领域，理解这些反应帮助科学家设计更好的冷却系统，提高能效。在环境科学中，吸热反应对于理解气候变化和大气中气体行为等现象至关重要。此外，吸热反应在工业过程中也至关重要。例如，在某些化学品的生产中，吸收热量是推动反应向前发展的必要条件。工业通常利用这些反应来创造需要精确温控的产品，以确保质量和安全。总之，吸热反应的概念对于化学研究及其在现实世界场景中的应用至关重要。通过吸收能量，这些反应促进了自然界和工业中的关键过程。随着我们继续探索化学反应的复杂性，理解吸热反应的重要性不容小觑。它们不仅帮助我们理解自然现象，还推动技术进步，改善我们的日常生活。