A bomb calorimetry experiment was performed on a sample of the liquid. A 1.1537 g sample of "Tiberium" was put into the bomb calorimeter with a high pressure of O₂ gas. Upon combustion, the temperature of the calorimeter was seen to rise from 24.1710 to 28.1508 °C. The heat capacity of the calorimeter was previously determined to be 10.874 kJ °C¹ and in a separate experiment the molar mass of the substance was determined to be 88.1482 g mol¹. Determine AcombU for the substance. -3312.3 kJ mol 3306.4 kJ mol 3312.3 kJ mol -3306.4 kJ mol-1
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
![Part B
A bomb calorimetry experiment was performed on a sample of the liquid. A 1.1537 g sample of "Tiberium" was put into the bomb
calorimeter with a high pressure of O₂ gas. Upon combustion, the temperature of the calorimeter was seen to rise from 24.1710
to 28.1508 °C. The heat capacity of the calorimeter was previously determined to be 10.874 kJ °C¹ and in a separate
experiment the molar mass of the substance was determined to be 88.1482 g mor¹. Determine Acomb for the substance.
-3312.3 kJ mol¹
3306.4 kJ mol¹
3312.3 kJ
mor¹
-3306.4 kJ mol-¹
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