If hydrogen and oxygen are mixed and kept in the same vessel at r… - Vidyadip

MCQ

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:

✓
Activation energy for the reaction is very high at room temperature.
B
Molecules have no proper orientation to react to form water.
C
The frequency of collisions is not high enough for the reaction to take place.
D
No catalyst is present in the reaction mixture.

✓

Answer

Correct option: A.

Activation energy for the reaction is very high at room temperature.

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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