MDCAT Physics MCQ #3404

A gas expands isothermally from 2L to 4L at 300K. What is the work done if there are 2 moles of gas?

MDCAT Physics MCQ #3404

  1. Question 1

    Q1. A gas expands isothermally from 2L to 4L at 300K. What is the work done if there are 2 moles of gas?

    • A) 2300 J
    • B) 3456 J
    • C) -3456 J
    • D) 0 J

    Answer: -3456 J

    Explanation: Work done = nRT ln(Vf/Vi) = 2 * 8.314 * 300 * ln(4/2) = 3456 J, negative because it's expansion.