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Question 10. Answer the following: Which principle is used to measure the specific heat capacity of a substance?

Question 10.

Answer the following:

Which principle is used to measure the specific heat capacity of a substance?


Answer:

Principle of heat capacity:


⇒ If heat is exchanged between hot and cold object, the temperature of the cold object increases (energy gain) and the temperature of the hot object decreases (energy loss).


⇒ Until the objects attain the same value, the temperature continues to change.


⇒ If the system of both the objects is isolated and close in a heat resistant box, then no energy can flow from inside the box or come into the box.


⇒ In this condition, we get the following principle:


Heat energy lost by the hot object = Heat energy gained by the cold object.