The following reaction:
[tex]$A \rightarrow B+C+\text { heat }$[/tex]
is a(n) __________ reaction.
A. endergonic
B. dehydration synthesis
C. exergonic
D. anabolic
E. exchange
Answer (2)
The reaction A → B + C + heat is an exergonic reaction because it releases heat. Thus, the correct choice is C. exergonic.
;
The reaction A → B + C + heat releases heat.
Exergonic reactions release heat, while endergonic reactions absorb heat.
Dehydration synthesis and anabolic reactions are not directly related to heat release.
Therefore, the reaction is exergonic .
Explanation
Analyzing the Reaction The given reaction is: A → B + C + heat This reaction releases heat. We need to identify the type of reaction based on whether it releases or absorbs heat.
Understanding Reaction Types
Endergonic reactions absorb energy (heat) from the surroundings.
Exergonic reactions release energy (heat) into the surroundings.
Dehydration synthesis is a type of anabolic reaction where water is removed to form a new bond.
Anabolic reactions build larger molecules from smaller ones and require energy.
Exchange reactions involve the exchange of ions or groups between two reactants.
Identifying the Reaction Type Since the reaction A → B + C + heat releases heat, it is an exergonic reaction.
Conclusion Therefore, the reaction is exergonic.
Examples
Exergonic reactions are common in everyday life. For example, burning wood releases heat and light, which is an exergonic reaction. Similarly, the explosion of dynamite is an exergonic reaction that releases a large amount of energy in a short period of time. Understanding exergonic reactions is crucial in various fields, including chemistry, biology, and engineering, for designing efficient energy systems and controlling chemical processes.
