Question 17
Temperature and ThermometersThermal equilibrium between two objects exists when
- A.the temperatures of both objects are equal
- B.the quantity of heat in both objects is the same
- C.the heat capacities of both objects are the same
- D.one object loses heat continuously to the other.
Show the answer and explanation
Answer: A (the temperatures of both objects are equal)
Explanation
Heat flows only from hot to cold; when the two temperatures are equal there is no net flow, which is thermal equilibrium.