The gas in the piston is at constant temperature. a student increases the pressure on the piston from 2 atm to 3 atm. the observation will be summarized in a row of the incomplete table below.1boyle's law? ? 2charles’s law? ? 3gay-lussac’s law? volume, moles of gas4combined gas law? ? which row of the table and which observation would the student fill? row 1, volume decreases when temperature decreasesrow 1, volume decreases when pressure increasesrow 3,  volume decreases when temperature decreasesrow 3, volume decreases when pressure increases