In this scenario, the explosion of the cylinder containing cooking gas in the house occurs due to the following reasons:
1. **Leakage:** If there is a leak in the cylinder or the connecting pipes, the gas can escape into the surrounding area.
2. **Accumulation:** The leaked gas can accumulate in a closed space like the house where the cylinder is kept. Gas, being lighter than air, tends to rise and collect near the ceiling.
3. **Ignition source:** If there is any source of ignition present in the vicinity, such as a spark, flame, or even a hot surface, it can ignite the accumulated gas.
4. **Combustion:** When the leaked gas comes into contact with the ignition source, it ignites rapidly and causes a sudden increase in pressure inside the cylinder.
5. **Pressure buildup:** The rapid combustion of the gas leads to a significant increase in pressure inside the cylinder beyond its capacity to contain, resulting in an explosion.
In summary, the explosion of the cooking gas cylinder in the house is primarily due to the combination of gas leakage, accumulation, ignition, combustion, and the subsequent pressure buildup beyond the cylinder's limits, leading to a dangerous and destructive event.
