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 Answer: Option C
C. I & III only
Explanation
I & III only as units are independent of energy equation.
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