heatin using additional information to your graph so that none is missed. Background Information on Ethanol: Boiling point = 60 °C Melting point = -105 °C Starting temperature = -120 °C 1. After two minutes, frozen cold ethanol starts to melt. It takes two minutes to melt completely. 2. After eight more minutes, it begins to boil. It boils for six minutes. 3. Heat is added for two more minutes until ethanol reaches 80 °C. 4. Label "Melting" where this takes place. 5. Label "Vaporization" where this takes place. 6. Label "Phase Change" where a phase change occurs. 7. Indicate where ethanol is only a SOLID, only a LIQUID, and only a GAS. 8. Of the three phases, label which phase has: Weakest IMF (intermolecular force), Strongest IMF, and Medium IMF.
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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