A chunk of metal alloy containing equimolar magnesium and zinc was analyzed using the ideal gas experiment. Which of the following statements is TRUE when this metal alloy is subjected to an ideal gas experiment? Both metals will have equal contributions to the number of moles of evolved H2 gas. Zinc will have larger contributions to the number of moles of evolved H2 gas Magnesium will have larger contributions to the number of moles of evolved H2 gas The metal with higher contribution to the number of moles of evolved H2
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.
A chunk of metal alloy containing equimolar magnesium and zinc was analyzed using the ideal gas experiment. Which of the following statements is TRUE when this metal alloy is subjected to an ideal gas experiment?
- Both metals will have equal contributions to the number of moles of evolved H2 gas.
- Zinc will have larger contributions to the number of moles of evolved H2 gas
- Magnesium will have larger contributions to the number of moles of evolved H2 gas
- The metal with higher contribution to the number of moles of evolved H2 gas cannot be determined in this case.
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