Which gas law relates volume to temperature at constant pressure?

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Multiple Choice

Which gas law relates volume to temperature at constant pressure?

Volume of a gas changes directly with its temperature when pressure stays the same. This relationship is Charles' Law: V is proportional to T at constant P, with T measured in Kelvin so the math works across all temperatures. In formula form, V1/T1 = V2/T2, meaning as temperature doubles (in Kelvin), the volume tends to double as well. Using Kelvin matters because it starts at absolute zero, avoiding negative or skewed values that would occur with Celsius. The other laws describe different fixed-variable scenarios: Boyle's Law links volume to pressure at constant temperature, Gay-Lussac's Law links pressure to temperature at constant volume, and the Ideal Gas Law combines all three variables into PV = nRT.

Volume of a gas changes directly with its temperature when pressure stays the same. This relationship is Charles' Law: V is proportional to T at constant P, with T measured in Kelvin so the math works across all temperatures. In formula form, V1/T1 = V2/T2, meaning as temperature doubles (in Kelvin), the volume tends to double as well. Using Kelvin matters because it starts at absolute zero, avoiding negative or skewed values that would occur with Celsius. The other laws describe different fixed-variable scenarios: Boyle's Law links volume to pressure at constant temperature, Gay-Lussac's Law links pressure to temperature at constant volume, and the Ideal Gas Law combines all three variables into PV = nRT.

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