The statement ‘Heat lost by the hot body equals that gained by the cold one’ is assumed when determining specific that heat capacity by the method of mixtures. Which of the following validates the assumption?

The statement ‘Heat lost by the hot body equals that gained by the cold one’ is assumed when determining specific that heat capacity by the method of mixtures. Which of the following validates the assumption?
I. Lagging the Calorimeter
II. Ensuring that only S.I units are used
III. Weighing the calorimeter, the lid and the stirrer.
A. I only
B. I & II only
C. I & III only
D. II & III only

Correct Option: Answer is C
I and III only as units are independent of energy equation.

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