Question
If hydrogen and oxygen are mixed and kept in the same vessel at room temperature, the reaction does not take place to form water because:

Answer

  1. Activation energy for the reaction is very high at room temperature.
Explanation:
Activation energy = It is defined as the least possible amount of energy (minimum) which is required to start a reaction or the amount of energy available in a chemical system for a reaction to take place.
The activation energy for the water formation reaction is very high at room temperature due to this reaction does not take place,

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