Which gas law is described by P1 x V1 = P2 x V2 under constant temperature?

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Multiple Choice

Which gas law is described by P1 x V1 = P2 x V2 under constant temperature?

Pressure and volume are inversely related for a fixed amount of gas when temperature stays the same: as volume decreases, pressure increases so that their product remains constant. That is exactly what P1 × V1 = P2 × V2 describes during an isothermal process. This is Boyle's Law. It applies when the temperature is constant and the amount of gas doesn't change. The other laws describe different relationships—Charles' Law links volume to temperature at constant pressure, Gay-Lussac's Law links pressure to temperature at constant volume, and the Ideal Gas Law combines all variables as PV = nRT.

Pressure and volume are inversely related for a fixed amount of gas when temperature stays the same: as volume decreases, pressure increases so that their product remains constant. That is exactly what P1 × V1 = P2 × V2 describes during an isothermal process. This is Boyle's Law. It applies when the temperature is constant and the amount of gas doesn't change. The other laws describe different relationships—Charles' Law links volume to temperature at constant pressure, Gay-Lussac's Law links pressure to temperature at constant volume, and the Ideal Gas Law combines all variables as PV = nRT.

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