Question 3
Gas LawsThe pressure on 100 cm3 of oxygen gas at 35°C is 750 mm of Hg. What would be the volume of the gas if the pressure is increased to 1000 mm of Hg without changing the temperature?
- A.133.3 cm3
- B.85 cm3
- C.75 cm3
- D.65 cm3
- E.58.3 cm3.
Show the answer and explanation
Answer: C (75 cm3)
Explanation
Boyle's law: P1V1 = P2V2, so V2 = 750 × 100/1000 = 75 cm3.