Consider samples of water and of ethanol that have equal masses. Which statement correctly describes the change in temperature when the same amount of heat is released by the water and the ethanol samples? The specific heat capacity of water is 4.184 J/(g °C), and the specific heat capacity of ethanol is 2.30 J/(g °C). The water will have a larger increase in temperature than the ethanol. The ethanol will have a larger increase in temperature than
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.
Consider samples of water and of ethanol that have equal masses. Which statement correctly describes the change in temperature when the same amount of heat is released by the water and the ethanol samples?
The specific heat capacity of water is 4.184 J/(g °C), and the specific heat capacity of ethanol is 2.30 J/(g °C).
The water will have a larger increase in temperature than the ethanol.
The ethanol will have a larger increase in temperature than the water.
The water will have a larger decrease in temperature than the ethanol.
The ethanol will have a larger decrease in temperature than the water.
Both the water and the ethanol will have the same increase in temperature.
Both the water and the ethanol will have the same decrease in temperature.
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