Question

When two objects A and B are in close contact,heat flows from object B to A, Which of then is at higher temperature?​

Answer 1

Answer:

B

Explanation:

The object b has more heat so the heat got transferred from b to a

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Answer 2

Answer:Energy will flow from A (at 52°C) to B (at 63°C)

Explanation:

Given,

Two bodies A and B are kept in contact. A is at 52˚and B is at 63˚C.

To find: the direction of heat flow.

Solution:

Concept: The cause of  flow of heat is due the temperature difference between the bodies. The heat will flow from higher to lower temperature to maintain equilibrium.

So, We can say that the body A at 52°C will gain heat and body at 63°C will loose heat.

Therefore, Energy will flow from A (at 52°C) to B (at 63°C)