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Graham's Law (of Effusion)

Graham's Law of Effusion states that the rate at which a gas escapes through a small opening is inversely related to the square root of its molar mass. In simpler terms, lighter gases effuse faster than heavier ones. For example, a helium balloon will deflate more quickly than one filled with oxygen because helium is lighter. This principle helps explain why different gases behave differently and can be useful in various applications, such as gas separation and understanding gas behaviors in different environments.