Enthalpy change for the final reaction = (2*1.638 kJ) - (3.0225 kJ) = 0.2535 kJ 1. Comment on why it is difficult to measure the enthalpy change in the decomposition of potassium hydrogen carbonate directly. 2. Is the final reaction endothermic or exothermic? 3. Provide reasons that may have led to discrepancy in your results in a calorimeter experiment.

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Enthalpy change for the final reaction = (2*1.638 kJ) - (3.0225 kJ)

= 0.2535 kJ

1. Comment on why it is difficult to measure the enthalpy change in the decomposition of potassium hydrogen carbonate directly.

2. Is the final reaction endothermic or exothermic?

3.  Provide reasons that may have led to discrepancy in your results in a calorimeter experiment.

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