20. A positive value of DELTAE means that:
  1. heat is tranferred to the surroundings
  2. heat is transfered to the system
  3. energy in the form of heat and/or work is transferred to the surroundings
  4. energy in the form of heat and/or work is transferred to the system


20. A positive value of DELTAE means that:

  4. energy in the form of heat and/or work is transferred to the system