The melting point of certain substance is 70oC, its normal boiling point is 450.0oC, its heat of fusion is 30.0 cal/g, its heat of vaporization is 45.0 cal/g and its specific heat capacity is 0.215 cal/gCo . Calculate the heat energy required to convert 100.0 g of a substance from the solid state at 70.0oC to vapor at 450.0oC. Draw the illustration.
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.
The melting point of certain substance is 70oC, its normal boiling point is 450.0oC, its heat of fusion is 30.0 cal/g, its heat of vaporization is 45.0 cal/g and its specific heat capacity is 0.215 cal/gCo . Calculate the heat energy required to convert 100.0 g of a substance from the solid state at 70.0oC to vapor at 450.0oC. Draw the illustration.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images