MDCAT Chemistry MCQ #2798

A gas cylinder contains 10 L of O₂ at 2 atm. What pressure is needed to compress it to 5 L at constant temperature?

MDCAT Chemistry MCQ #2798

  1. Question 1

    Q1. A gas cylinder contains 10 L of O₂ at 2 atm. What pressure is needed to compress it to 5 L at constant temperature?

    • A) 1 atm
    • B) 2 atm
    • C) 4 atm
    • D) 8 atm

    Answer: 4 atm

    Explanation: P₁V₁ = P₂V₂ → 2×10 = P×5 → P = 4 atm. Option B ignores volume change.