Thermal Equilibrium of Bodies – Rankers Physics

Calorimetry: Practice Problem & Solution

Assertion (A): Two bodies at different temperatures, if brought in contact do not necessary settle to the mean temperature. Reason (R): The two bodies may have different thermal capacities.  
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Solution Explained:

To solve this problem, we apply the core principles of Calorimetry. Understanding the underlying formula is key to arriving at the correct answer below:

The final temperature of two bodies in contact depends on their thermal capacities \(m\times c\). If capacities are unequal, the final temperature will not be the mean. Both A and R are true, and R explains A.

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