What happened at point C to end with D?
a
The surrounding air transferred thermal energy to A and B to equalize both in D. Air is the best conductor of heat.
b
A transferred thermal energy to B to equalize both in D. Warmer always moves toward colder areas.
c
B transferred thermal energy to A to equalize both in D. Cold always moves toward warmer areas.
d
This scenario can only be possible in a controlled setting in lab.
The correct answer is d. This scenario can only be possible in a controlled setting in a lab. Since none of the given options correspond to a valid explanation for what happened at point C to end with D, it suggests that this scenario is not a natural occurrence and can only happen in a controlled setting in a lab.
To find the answer to this question, we need to understand the process of heat transfer. Heat transfer can occur through three main methods: conduction, convection, and radiation.
In conduction, heat transfer happens through direct contact between two objects. In this case, it is mentioned that air is the best conductor of heat. So, let's consider the possibilities based on that information:
Option A: The surrounding air transferred thermal energy to A and B to equalize both in D. This option suggests that heat transfer occurs between the surrounding air and both A and B. This could be a possible scenario if the surrounding air is at a different temperature than A and B, and heat flows from the air to both A and B until they reach an equal temperature in point D.
Option B: A transferred thermal energy to B to equalize both in D. This option suggests that heat transfer happens directly from A to B. This could be possible if A is at a higher temperature than B, and heat flows from A to B until they both reach an equal temperature in point D.
Option C: B transferred thermal energy to A to equalize both in D. This option suggests that heat transfer happens directly from B to A. However, this contradicts the statement that air is the best conductor of heat, and it would be unusual for heat to transfer from a colder object (B) to a warmer object (A).
Option D: This scenario can only be possible in a controlled setting in a lab. It suggests that the given situation is only possible under specific conditions in a controlled experiment.
Based on the information provided, it seems that option A is the most likely explanation. So the correct answer is option A: The surrounding air transferred thermal energy to A and B to equalize both in D.