The standard heat of reaction for the decomposition of ZnO(s) is ΔH = 348 kJ/mol. What does this information tell you about the formation of ZnO(s) under standard STP conditions?
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.
The standard heat of reaction for the decomposition of ZnO(s) is ΔH = 348 kJ/mol. What does this information tell you about the formation of ZnO(s) under standard STP conditions?
I love to cook! I have two frying pans. One is made of iron which has a specific heat capacity of 0.444J/g-C. The other is made of copper which has a specific heat capacity of 0.385 J/g-C. Which pan will reach my desired cooking temperature more quickly? Assume that the range top settings are IDENTICAL and the amount and type of food in each pan is the SAME.
Iron has a specific heat capacity of 0.444J/g-C. 50.0 g of iron at 35C is added to 50.0 g of water with a specific heat capacity of 4.184 J/g-C. When the temperature of the resulting mixture stops changing, the temperature is closer to that of the original water than to the iron
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