A dilute solution of hydrochloric acid with a mass of 606.87 g and containing 0.31625 mol of HCl was exactly neutralized in a calorimeter by the sodium hydroxide in 615.48 g of a comparably dilute solution. The temperature increased from 16.101 to 19.526°C. The specific heat of the HCl solution was 4.031 J-g1.°C"1; that of the NaOH solution was 4.046 J-gʻ1.°C*1. The heat capacity of the calorimeter was 77.99 JºC*1, Enter the balanced equation for the reaction. Include states in your answer. eTextbook and Media Use the data above to calculate the heat evolved. What is the heat of neutralization per mole of HCI? Assume that the original solutions made independent contributions to the total heat capacity of the system following their mixing. AH = i kJ/mol
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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