The gas in the piston is at constant temperature. A student increases the pressure on the piston from 2 atm to 3 atm. Expand Image Expand Image Which gas law would a student use to investigate this situation?

Boyle’s law describes how pressure and volume change for a fixed amount of gas when temperature stays constant. Since the gas’s temperature is constant while its pressure increases from 2 atm to 3 atm, Boyle’s law applies; the gas volume would decrease as pressure increases.

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