For samples with the same mass, which kind of substance needs more energy to undergo an increase of 5°C, something with a large or with a small specific heat? Explain by selecting all true statements. O The energy required depends directly on the specific heat. O The energy required depends inversely on the specific heat. O The substance with the larger specific heat requires more energy for a 5°C rise. O The substance with the smaller specific heat requires more energy for a 5°C rise. O None of these or more information is needed. nTexthook and Media
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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