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Multiple Choice

Which gas law describes the relation of pressure to temperature at constant volume?

At fixed volume, pressure changes directly with temperature. As temperature increases, gas molecules move more quickly and collide with the container walls more forcefully, raising the pressure. This relationship is described by Gay-Lussac's Law, often stated as P1/T1 = P2/T2 when volume and amount of gas are constant (temperatures must be in Kelvin). It’s important to note that this law assumes ideal gas behavior. For contrast, Boyle’s Law relates pressure to volume at constant temperature, and Charles’ Law relates volume to temperature at constant pressure; the broader equation PV = nRT ties all three variables together.

At fixed volume, pressure changes directly with temperature. As temperature increases, gas molecules move more quickly and collide with the container walls more forcefully, raising the pressure. This relationship is described by Gay-Lussac's Law, often stated as P1/T1 = P2/T2 when volume and amount of gas are constant (temperatures must be in Kelvin). It’s important to note that this law assumes ideal gas behavior. For contrast, Boyle’s Law relates pressure to volume at constant temperature, and Charles’ Law relates volume to temperature at constant pressure; the broader equation PV = nRT ties all three variables together.