Answer:
Adding in the boxes an arrow that points from
to
.
Step-by-step explanation:
According to the Second Law of Thermodynamics, the heat transfer occur from a higher temperature body to a lower temperature body.
So, applying the Second Law of Thermodynamics, the correct answer is the first one: Adding in the boxes an arrow that points from
to
; because this direction is pointing the right one, it doesn't violate the second law of the thermodynamics, the heat is gonna go from
to
, and the arrow indicates that.
Remember that the problem states that
is a cold object and
is a hot object.