Answer :
Final answer:
No thermal energy or heat does not flow between two ice cream cones at exactly 0 °C because they are already at thermal equilibrium, meaning they have the same temperature. Heat only flows from hotter objects to colder ones until their temperatures equalize.
Explanation:
The question asks whether thermal energy will flow between two ice cream cones that are both at exactly 0 °C. The answer is (C) No, thermal energy does not flow between two objects at the same temperature. This is because thermal energy, or heat, flows spontaneously from hotter objects to colder objects until thermal equilibrium is reached, meaning that both objects have the same temperature. However, in this case, the two ice cream scoops are already at the same temperature, so there is no heat flow between them. For instance, referring to the examples of a hot coffee and a cold spoon, or a soft drink and some ice, when they come into contact, thermal energy flows from the hotter object (coffee or soft drink) to the colder one (spoon or ice), thus equalizing the temperatures - this is a demonstration of how thermal energy works in general. However, in the case of the two ice cream scoops at 0°C, this heat transfer doesn't occur as they are already in thermal equilibrium with no temperature difference.
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