Both Jacques Charles and Joseph Louis Guy-Lussac were avidballoonists. In his original flight in 1783, Jacques Charlesused a balloon that contained approximately 31,150 L of H2.He generated the H2 using the reaction between iron and hydrochloricacid:Fe(s) + 2 HCl(aq) --> FeCl2(aq) + H2(g)How many kilograms of iron were needed to produce thisvolume of H2 if the temperature was 22 °C?
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.
Both Jacques Charles and Joseph Louis Guy-Lussac were avid
balloonists. In his original flight in 1783, Jacques Charles
used a balloon that contained approximately 31,150 L of H2.
He generated the H2 using the reaction between iron and hydrochloric
acid:
Fe(s) + 2 HCl(aq) --> FeCl2(aq) + H2(g)
How many kilograms of iron were needed to produce this
volume of H2 if the temperature was 22 °C?
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