O2/N2 ratios

The O2/N2 ratio compares the amount of oxygen (O2) to nitrogen (N2) in a gas mixture. Since air is about 21% oxygen and 78% nitrogen, this ratio helps identify changes in air composition, such as in breathing, combustion, or environmental studies. For example, if the ratio decreases, it may indicate oxygen has been consumed or replaced by other gases. Monitoring this ratio is important in fields like medicine, industrial processes, or atmospheric science to understand gas behavior and ensure safety and efficiency.