Question

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.

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Row Name Observation Constants
1 Boyle's law ? ?
2 Charles’s law ? ?
3 Gay-Lussac’s law ? Volume, moles of gas
4 Combined gas law ? ?

Which row of the table and which observation would the student fill?
row 1, volume decreases when temperature decreases
row 1, volume decreases when pressure increases
row 3, volume decreases when temperature decreases
row 3, volume decreases when pressure increases

Answer 1

Answer: B

Step-by-step explanation:

Answer 2

Row 1, volume decreases when pressure increases

The given situation is a demonstration of Boyle's Law, which states that the volume of a given amount of gas kept at constant temperature is inversely proportional to the pressure.
When the pressure is increased by pushing the piston downwards, the gas will be compressed and its volume will decrease.