A new flame atomic-absorption spectroscopic method of determining antimony in the atmosphere was compared with the recommended calorimetric method. For samples from an urban atmosphere the following results were obtained: follow up question: Do the results obtained by the two methods differ significantly?
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.
A new flame atomic-absorption spectroscopic method of determining antimony in the atmosphere
was compared with the recommended calorimetric method. For samples from an urban
atmosphere the following results were obtained:
follow up question: Do the results obtained by the two methods differ significantly?
![Sample no.
Antimony found (mg m-³)
New method
Standard method
1
25.0
22.2
19.2
2
19.5
3
15.7
16.6
4
20.4
21.3
5
19.6
20.7
15.7
16.8](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F152bc6db-9e97-4db5-858c-ecdce826720a%2F3ebb72e7-9ac7-47ac-bf60-3f7309242889%2Fwu9optu_processed.png&w=3840&q=75)
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