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.
![Use the van der Waals equation of state to calculate the pressure of 2.70 mol of CH, at 471 K in a 3.90 L vessel. Van der Waals
constants can be found in the van der Waals constants table,
P =
atm
Use the ideal gas equation to calculate the pressure under the same conditions.
atm
Enter numeric value
Under these conditions, would you expect CH, or CCI, to deviate more from ideal behavior? Why?
CCI because it occupies a larger volume and it has smaller dispersion forces between molecules.
CH because it occupies a smaller volume and it has smaller dispersion forces between molecules.
O CCI, because it occupies a smaller volume and it has greater dispersion forces between molecules.
CH, because it occupies a larger volume and it has smaller dispersion forces between molecules.
CH, because it occupies a smaller volume and it has greater dispersion forces between molecules.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdce9ba03-80ad-4ef0-9d01-d879c68da607%2F2359779d-e0c3-4dd7-a688-1889da3aac6d%2Fk62ppxf_processed.jpeg&w=3840&q=75)
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