One mole of a perfect gas contained in a 10-liter vessel at 27 °C is permitted to expand freely into an evacuated vessel of 10-liter capacity so
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.
Answer the following:
One mole of a perfect gas contained in a 10-liter vessel at 27 °C is
permitted to expand freely into an evacuated vessel of 10-liter capacity so
that the final volume is 20 liters. What amount of work is done and what
amount of heat is absorbed in the process? What is the change in the
entropy accompanying the process?
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