In an isolated system, two copper bars at different temperatures transfer energy until both are at the same temperature. how would the
transfer of energy be different if the bars were in an open system?
a. energy transfer would occur only between the copper bars.
b. energy transfer would occur between the copper bars and the surroundings.
c. no energy transfer would occur between the copper bars or the surroundings.
d. energy transfer would occur only with the surroundings.