A gas occupies 2.0 dm³ at 1.0 atm. At constant temperature it is compressed to 0.50 dm³. What is its new pressure?
Correct answer A. 4.0 atm
Explanation
Boyle's law: P₁V₁ = P₂V₂, so P₂ = (1.0 × 2.0) ÷ 0.50 = 4.0 atm. Volume falls to a quarter, so pressure rises four times.
Answer checked How we write and check questions
Discussion