Question

Which conditions must be true for the zeroth law of thermodynamics to be applied when two objects are in contact with a third object?(1 point)
Responses

One object receives heat from two other objects, creating thermal flow.
One object receives heat from two other objects, creating thermal flow.

Two objects not in contact with each other are both in contact with the same third object.
Two objects not in contact with each other are both in contact with the same third object.

Two objects must be generating heat energy to transfer to other objects.
Two objects must be generating heat energy to transfer to other objects.

One object transfers heat to two other objects to create thermal equilibrium.

Answer 1

Two objects not in contact with each other are both in contact with the same third object.

Explanation: The zeroth law says if A is in thermal equilibrium with C and B is in thermal equilibrium with C, then A and B are in thermal equilibrium with each other (same temperature), so no net heat flow between A and B.