Gas Collection by Water Displacement - Lab Diagram & Explanation #3254009 (License: Personal Use)

This line drawing depicts the classic water displacement method for collecting insoluble gases in a laboratory setting. An inverted graduated cylinder is submerged in a water-filled trough, and gas generated from a reaction below enters the cylinder, displacing water as bubbles ascend and accumulate at the top. The setup allows for volume measurement of the evolved gas under ambient pressure and temperature.

Used in high school and college chemistry curricula to teach gas laws, stoichiometry, and lab safety; commonly appears in lab manuals, educational websites, and interactive simulations where users learn to collect and quantify gases like oxygen or hydrogen.