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Gay Lussac's Law

Why is volume...

Question

Why is volume of gases compared under s.t.p conditions only??

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Solution

Pressure, volume and Temperature are interdependent quantities.

The volume of any gaseous substance depends on pressure and temperature, hence when a comparison between two gases are made it is essential that the other two quantities (on which volume depends) are equal.
This allows to eliminate any ambiguity in the comparison.

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