N2(g) + 3Cl2(g) 2NCl3(l) ∆H°rxn = +460 kJ Consider a reaction mixture of 6.5 LSTP of N2(g) and 16 LSTP of Cl2(g): ... If all 6.5 LSTP of N2(g) react, the reaction heat is _______ kJ ... If all 16 LSTP of Cl2(g) react, the reaction heat is _______ kJ ... The limiting reagent in this mixture is _______ ... The theoretical heat of this reaction mixture is _______ kJ
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.
N2(g) + 3Cl2(g) 2NCl3(l) ∆H°rxn = +460 kJ
Consider a reaction mixture of 6.5 LSTP of N2(g) and 16 LSTP of Cl2(g):
... If all 6.5 LSTP of N2(g) react, the reaction heat is _______ kJ
... If all 16 LSTP of Cl2(g) react, the reaction heat is _______ kJ
... The limiting reagent in this mixture is _______
... The theoretical heat of this reaction mixture is _______ kJ
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