what is calorimeter?
Kindly refer the following link.
https://www.meritnation.com/ask-answer/question/what-is-the-main-purpose-of-calorimetry/thermodynamics/1489616
https://www.meritnation.com/ask-answer/question/what-is-the-main-purpose-of-calorimetry/thermodynamics/1489616