Note: Please make sure your writing is neat, and I will make sure to give you a thumbs up! Using the lab data, determine the experimental molar enthalpy of combustion per mole of paraffin wax, and compare it to the standard molar enthalpy of combustion of paraffin wax where AH°c = -41.5 kJ/g (Make sure to convert from kJ/g to kJ/g). Data: Mass of water: 100.0 grams Water temperature (Initial): 19.3 °C Water temperature (Final): 33.6 °C Mass of paraffin wax candle (Initial): 10.54 g Mass of paraffin wax candle (Final): 9.62 g After completing these steps, calculate the percentage error with the following formula Experimental value - Expected value x 100% Expected value
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.
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