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A 0.44 mol sample of a substance is burned in a bomb calorimeter with a heat...

A 0.44 mol sample of a substance is burned in a bomb calorimeter with a heat capacity of 8.87 kJ/C. The temperature increases by 8.36 C. What is ΔHrxn (in kJ/mol) for the combustion of the substance?

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Answer :-

This question is solved by using the simple concept of thermodynamics. Firstly amount of energy released is calculated then it is divided by moles to get enthalpy change of reaction.

The answer is given in the image,

Anduer aoles- O.44 8.81 к е Ccal АT- 8.36°с Иeat release- Ccal.dT O. 87x 8.36 -74, 1532 kJ AHXn Heat gallased 4.1S32 O.44 -16

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