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.
1. Balance the equation P2O5 + H2O -> H3PO4
What is the coeffiecient of P2O5, H2O, H3PO4 respectively?
1A. Balance the equation B10H18 + O2 -> B2O3 + H2O
What is the coeffiecient of B10H18, O2, B2O3, H2O respectively?
1B. Nitrogen gas and Hydrogen gas were combined to form Ammonia.
Compute for the grams of Nitrogen when Hydrogen is 7.08 mol
Atomic weight: Nitrogen 14.0g/mol
Hydrogen 1.00g/mol
1C. Nitrogen gas and Hydrogen gas were combined to form Ammonia.
Compute for the grams of Ammonia when Nitrogen is 3.09 grams.
Atomic weight: Nitrogen 14.0g/mol
Hydrogen 1.00g/mol
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