The need for gasps in railway lines explain in terms of kinetic molecular theory
According to the kinetic molecular theory, gases are made up of molecules that are constantly moving in random directions and colliding with each other and their surroundings. In railway lines, gasps are needed to prevent the build-up of pressure and allow for the expansion and contraction of gases in response to temperature changes.
When a train passes through a railway line, it creates vibration and friction, which can increase the temperature of the surrounding air. As this air heats up, the molecules move faster and collide more frequently, leading to an increase in pressure. Without gasps, this increased pressure could cause damage to the railway line or even disrupt train operations.
By providing gasps in railway lines, excess pressure is allowed to escape, preventing potential damage and ensuring the safe operation of trains. Gasps also help to maintain the equilibrium of the gas molecules, allowing them to freely expand and contract as needed.