Ammonium nitrate has been used as a high explosive because it is unstable and decomposes into several gaseous substances. The rapid expansion of the gaseous substances produc the explosive force. NH,NO3 (8) → N2(g) + O2 (9) + H20(g) Calculate the mass of each product gas if 47.4 g of ammonium nitrate reacts. | g N2 g O2 | g H2O
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.
Mole concept: Numerically It is the number of grams of a substance divided by the molar mass of the compound.
The formula to calculate the number of moles(n) is
where m = mass of the substance given in gram.
M = molar mass of the substance in g/mol.
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