Which statement about the reaction is correct? The total chemical potential energy of the reactants is greater than the total chemical potential energy of the products. More chemical potential energy is stored in the bonds of CH4 than in the bonds of CH3N. Each reactant has more chemical potential energy than each product.
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.
The
CH4 + N2 + H2 → CH3N + NH3
Which statement about the reaction is correct?
- The total chemical potential energy of the reactants is greater than the total chemical potential energy of the products.
- More chemical potential energy is stored in the bonds of CH4 than in the bonds of CH3N.
- Each reactant has more chemical potential energy than each product.
- It takes more energy to form C–H bonds in the reactants than is released from C–H bonds in the products.
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