The reactions between `H_(2)(g) and O_(2)(g)` is highly feasuble yet allowing the gases to stand at room tempertaure in the same vessel does not lead to the formation of water . Explain

Explanation

To explain why the reaction between hydrogen gas (H₂) and oxygen gas (O₂) does not lead to the formation of water (H₂O) at room temperature, we can break down the reasoning into several steps:

### Step 1: Understanding the Reaction
The reaction between hydrogen and oxygen can be represented by the equation:
\[ 2H_2(g) + O_2(g) \rightarrow 2H_2O(l) \]
This equation indicates that two molecules of hydrogen react with one molecule of oxygen to produce two molecules of water.

### Step 2: Feasibility of the Reaction
The reaction is thermodynamically feasible, which means that it has a negative Gibbs free energy change (ΔG < 0). This indicates that the formation of water from hydrogen and oxygen is energetically favorable.

### Step 3: Activation Energy Requirement
Despite the reaction being feasible, it requires a significant amount of energy to initiate. This energy is needed to break the bonds in the reactants (H-H and O=O bonds) before new bonds can form in the products (H-O bonds in water).

### Step 4: High Activation Energy
The activation energy for the reaction between hydrogen and oxygen is very high. This means that the energy required to break the bonds in the hydrogen and oxygen molecules is much greater than what is available at room temperature.

### Step 5: Insufficient Energy at Room Temperature
At room temperature, the kinetic energy of the gas molecules is not sufficient to overcome the high activation energy barrier. As a result, the hydrogen and oxygen molecules do not collide with enough energy to break their bonds and react to form water.

### Conclusion
In summary, even though hydrogen and oxygen are present together and the reaction to form water is thermodynamically favorable, the high activation energy required for the reaction prevents it from occurring at room temperature. Therefore, no water is formed when these gases are allowed to stand in the same vessel at room temperature.

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