A gas occupies a volume of 480 mL at 127 °C and 140 mm Hg. What mathematical expression will yield the correct volume at 177 °C and 400 mm Hg?

Question

Quizplus · Accepted Answer

Charles's law states that the volume of a gas is directly proportional to its temperature. Boyle's law states that the volume of a gas is inversely proportional to its pressure. Combining these two laws, we get the combined gas law:V1/T1P1 = V2/T2P2where V is the volume, T is the temperature, and P is the pressure.We can use this equation to find the new volume of the gas:V2 = V1 × (T2/T1) × (P1/P2)V2 = 480 mL × (450 K/400 K) × (140 mmHg/400 mmHg)V2 = 360 mL

A Gas Occupies a Volume of 480 ML at 127