Use the interactive to observe the temperature change that results from burning various fuels in a bomb calorimeter. Water temperature 21.9 °C Fuel Wood Mass 1g 2g 3g Replay Calculate the amount of heat released from combustion of 1 g of wood. The heat capacity of the bomb calorimeter is 9.96 kJ/°C.
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.
Interpretation-
To determine the amount of heat released from combustion of 1g of wood. The heat capacity of the bomb calorimeter is 9.96 kJ/oC -
Introduction-
To determine the amount of heat released from combustion of 1g of wood , here we use a formula that is -
for bomb calorimeter -
heat released ( q ) = C
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