Which of the following statements is true with respect to the flow of heat? Group of answer choices The overall energy change is positive when heat is transferred It requires an outside energy source It results in an uneven distribution of energy Depending on the temperature, it can either flow from hotter to colder or from colder to hotter objects It flows spontaneously from hotter objects to colder objects
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.
(Q63) Which of the following statements is true with respect to the flow of heat?
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