LIFE SCIENCE

Detailed explanation-1: -All chemical reactions need energy to get started. Even reactions that release energy need a boost of energy in order to begin. The energy needed to start a chemical reaction is called activation energy.

Detailed explanation-2: -Activation energy is the minimum energy required to cause a reaction to occur.

Detailed explanation-3: -Reactions require an input of energy to initiate the reaction; this is called the activation energy (EA). Activation energy is the amount of energy required to reach the transition state. The source of the activation energy needed to push reactions forward is typically heat energy from the surroundings.

Detailed explanation-4: -Activation energy is defined as the minimum amount of extra energy required by a reacting molecule to get converted into product. It can also be described as the minimum amount of energy needed to activate or energize molecules or atoms so that they can undergo a chemical reaction or transformation.