Example 1 · difficulty 1/5
Bodies X and Y are each placed separately in thermal contact with body Z, and after some time neither X nor Y shows any further net exchange of heat with Z. What follows directly from the zeroth law of thermodynamics?
- A. X and Y are in thermal equilibrium with each other
- B. X and Y must contain equal quantities of heat energy
- C. Heat will now begin to flow spontaneously from X to Y
- D. X and Y must also have equal masses and equal volumes