All reactions require an activation energy. Some appear not to because that energy is provided enough by their temperature. Thus, there is no reaction that does not require any initial energy to occur.
A reaction that results in an overall release of energy is called an exothermic reaction.
An exothermic reaction releases energy to its surroundings.
A reaction that releases energy is exothermic.
One example of a chemical reaction that releases energy is the combustion of methane gas (CH4) in the presence of oxygen. This reaction produces carbon dioxide (CO2) and water (H2O) along with a significant amount of heat and light energy.
An exothermic reaction is a chemical reaction that releases energy in the form of heat. The energy released during the reaction increases the temperature of the surroundings. This type of reaction commonly involves the formation of bonds which releases more energy than is required to break the existing bonds.
A reaction is endergonic when it requires a net input of energy; if the products contain more energy than the reactants. So, no an endergonic reaction takes in energy. An exergonic reaction releases energy. In an exergonic reaction, the reactants contain more energy than the products.
An exothermic reaction releases energy to its surroundings.
A reaction that releases energy is exothermic.
Even though exothermic reactions release energy overall, they still require an initial input of energy to overcome the activation energy barrier. This energy is needed to initiate the reaction by breaking the existing bonds in the reactant molecules. Once this barrier is crossed, the reaction proceeds spontaneously and releases energy in the form of heat.
Exothermic reactions
No, it is not true. Reactions can be reversible, meaning they can proceed in both directions depending on the conditions. If a reaction releases energy in one direction, it may require an input of energy to proceed in the opposite direction, but it can still occur.
One example of a chemical reaction that releases energy is the combustion of methane gas (CH4) in the presence of oxygen. This reaction produces carbon dioxide (CO2) and water (H2O) along with a significant amount of heat and light energy.
An exothermic reaction is a chemical reaction that releases energy in the form of heat. The energy released during the reaction increases the temperature of the surroundings. This type of reaction commonly involves the formation of bonds which releases more energy than is required to break the existing bonds.
No that is false. Increasing temperature favors the reaction that absorbs energy, not that releases energy as heat.
False. Not all chemical reactions require catalysis. Some reactions occur spontaneously, while others may require an initial input of energy in the form of activation energy. Catalysis is a process that lowers the activation energy required for a reaction to occur, but it is not necessary for all reactions.
Exothermic reaction
A reaction that releases energy is usually termed exothermic reaction. Energy is usually released as heat.
A reaction is endergonic when it requires a net input of energy; if the products contain more energy than the reactants. So, no an endergonic reaction takes in energy. An exergonic reaction releases energy. In an exergonic reaction, the reactants contain more energy than the products.