An iron bar at 200 degree Celsius is placed in thermal contact with an identical iron bar at 120 degree Celsius in an isolated system. After 30 minutes both bars are at 160 degree Celsius. If the bars were put in an open system how would the results be different

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

i believe the answer is true.

what are the statements