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exothermic    音标拼音: [,ɛksoθ'ɚmɪk]
a. 发热的,放出热量的

发热的,放出热量的

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  • Exothermic process - Wikipedia
    An exothermic reaction occurs when heat is released to the surroundings According to the IUPAC, an exothermic reaction is "a reaction for which the overall standard enthalpy change Δ H ° is negative" [4] Some examples of exothermic process are fuel combustion, condensation and nuclear fission, [5] which is used in nuclear power plants to release large amounts of energy [6]
  • 7. 3: Exothermic and Endothermic Reactions - Chemistry LibreTexts
    Endothermic and exothermic reactions can be visually represented by energy-level diagrams like the ones in Figure 7 3 2 In endothermic reactions, the reactants have higher bond energy (stronger bonds) than the products Strong bonds have lower potential energy than weak bonds Hence, the energy of the reactants is lower than that of the products
  • Exothermic Reactions - Definition and Examples
    An exothermic reaction is defined as a reaction that releases heat and has a net negative standard enthalpy change Examples include any combustion process, rusting of iron, and freezing of water Exothermic reactions are reactions that release energy into the environment in the form of heat
  • Exothermic reaction - Wikipedia
    A strongly exothermic reaction will usually also be exergonic because Δ H⚬ makes a major contribution to Δ G⚬ Most of the spectacular chemical reactions that are demonstrated in classrooms are exothermic and exergonic The opposite is an endothermic reaction, which usually takes up heat and is driven by an entropy increase in the system
  • Endothermic and Exothermic Chemical Reactions - ThoughtCo
    Learn how to perform hot and cold chemistry experiments while learning about endothermic and exothermic chemical reactions
  • Understanding Endothermic and Exothermic Reactions
    For exothermic reactions, the products are at a lower energy level than reactants For endothermic reactions, the products are at a higher energy level The peak between reactants and products represents activation energy Reversible Reactions and Equilibrium Some reactions are reversible —meaning they can go forward and backward
  • What are exothermic and endothermic reactions? - BBC Bitesize
    Revise and understand what endothermic and exothermic reactions are and how the two reactions affect energy transfer to or from their surroundings
  • Exothermic and endothermic reactions - Energy changes in chemical . . . - BBC
    Learn about the energy of chemical bonds in compounds and explain how energy values are used to work out the energy change of a reaction
  • Exothermic Reaction: Definition, Equation, and Examples
    Find out about the exothermic reaction process Learn the energy profile and check out a few examples and applications Exothermic reactions in daily life
  • EXOTHERMIC Definition Meaning - Merriam-Webster
    The meaning of EXOTHERMIC is characterized by or formed with evolution of heat How to use exothermic in a sentence





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