Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the following process: 2NH3(g) + 3O2(g) + 2CH4(g) →PI 2HCN(g) + 6H2O(g) Hydrogen cyanide is used to prepare sodium cyanide, which is used in part to obtain gold from gold-containing rock. If a reaction vessel contains 11.5 g NH3, 12.0 g O2, and 10.5g CH4, what is the ma_ximum mass in grams of hydrogen cyanide that could be made, assuming the reaction goes to completion as written?
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.
Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the following process:
2NH3(g) + 3O2(g) + 2CH4(g) →PI
2HCN(g) + 6H2O(g)
Hydrogen cyanide is used to prepare sodium cyanide, which is used in part to obtain gold from gold-containing rock. If a reaction vessel contains 11.5 g NH3, 12.0 g O2, and 10.5g CH4, what is the ma_ximum mass in grams of hydrogen cyanide that could be made, assuming the reaction goes to completion as written?
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