When a gas expands against a piston, work is done:

  1. by nobody
  2. by the gas on the surroundings
  3. on the gas by the surroundings
  4. only on the container walls
Answer

B) by the gas on the surroundings

The gas pushes the piston out. SLO P-11-C-07 · Understanding

Physics MCQ · More Kinetic Theory and First Law of Thermodynamics MCQs · Practise