A sample of carbon dioxide occupies a volume of 3.50 L at 125 kPa pressure. What pressure

would the gas exert if the volume was decreased to 2.0 L?

Answer: 218.75 kPa

Explanation:

Carbon dioxide is a gas with chemical formula CO2.

Original volume of CO2 (V1) = 3.50 L

Original pressure of CO2 (P1) = 125 kPa

New pressure of CO2 (P1) = ?

New Volume of CO2 (V2) = 2.0 L

Since pressure and volume are given while temperature is constant, apply the formula for Boyle's law

P1V1 = P2V2

3.50L X 125 kPa = P1 x 2.0L

437.5 L•kPa = 2.0L•P1

Divide both sides by 2.0L

437.5 L•kPa/2.0L = 2.0L•P1/2.0L

218.75 kPa = P1

Thus, the new pressure of carbon dioxide would be 218.75 kPa