The first law says energy is conserved; the second law tells us:

  1. work equals heat
  2. energy is created
  3. the direction in which processes occur naturally
  4. temperature is absolute
Answer

C) the direction in which processes occur naturally

e.g. hot to cold. SLO P-11-C-15 · Understanding

Physics MCQ · More Heat Engines, Second Law and Entropy MCQs · Practise