Consider the following student statements about what occurs when a hot metal rod is…
PHYSICS · Single correct · AP · Physics 2: Algebra-based · Thermodynamics · Thermodynamics
Problem
Consider the following student statements about what occurs when a hot metal rod is placed into cool water and the system eventually reaches thermal equilibrium.
I. At equilibrium, the average kinetic energies of the particles in the metal and the water are equal.
II. No collisions occur between particles of the two substances once equilibrium is reached.
III. The net transfer of energy as heat is zero at equilibrium, even though individual collisions still occur.
Which of the following is correct?
(a) II and III only
(b) I only
(c) I and III only
(d) I and II only