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28 September, 10:51

The energy needed to start a chemical reaction is called

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  1. 28 September, 11:09
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    Activation Energy. All chemical reactions, even exothermic reactions, need a certain amount of energy to get started. This energy is called activation energy. For example, activation energy is needed to start a car.
  2. 28 September, 11:11
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    The energy required to begin a reaction is known as activation energy. The most common form of activation energy is going to be heat.

    Explanation:The energy required is called the activation energy. The minimum amount of energy needed to start a chemical reaction is given by the formula Ea=-RT*ln (k/A). R is the universal gas constant, T is temperature in Kelvin, k is the reaction rate coefficient and A is the frequency factor.
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