2N2OH + H2S04 2H2O + Na2SO4 -> AH = -112 kJ %3D What is the heat change for the reaction when the calculated 0.024 mol Na2SO4 form? 9rxn = [ ? ] J
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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2NaOH + H2SO4 2H2O + Na2SO4
->
AH = -112 kJ
What is the heat change for the reaction
when the calculated 0.024 mol Na2SO4
form?
Trxn = [ ? ] J
Enter either a + or - sign AND the magnitude. Do
not round until the end. Use significant figures.
q.rxn (J)
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