Samples of three metals are prepared: potassium, silver, and rubidium. All of the samples have the same mass and begin the experiment at room temperature, 22.7°C. Each sample is placed into a coffee-cup calorimeter that contains the same volume of water at 97.8°C. Which sample will absorb the adjective heat? It is probably worth noting that potassium has the highest specific heat and silver has the lowest specific heat. Assume that all of the coffee-cup calorimeters have the same heat capacity. O rubidium O potassium O silver O All of the metal samples absorb the same amount of heat. O Not enough information to make any determination.
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.
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