If the enthalpy value for a reaction is negative, what does that indicate about the reaction? Please explain how you got your an
2 answers:
Answer: Option (D) is the correct answer.
Explanation:
When reactants absorb energy in a chemical reaction then products have more energy than the reactants. The value of is positive for an endothermic reaction.
Whereas when reactants release energy in a chemical reaction then products have less energy than the reactants. The value of is negative for an exothermic reaction.
Thus, we can conclude that if the enthalpy value for a reaction is negative, then it indicates that the reaction is exothermic and heat is released to the surroundings.
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There are three carbon and 8 hydrogen present in propane molecule. The Lewis structure of propane is shown as:
Three molecules of such carbon atoms bound to eight molecules with hydrogen atoms make up the organic complex propane molecule.
It is known that carbon has 4 valence electrons and hydrogen has one valence electron. Carbon needs 4 extra electrons to complete its octet hence, it will share its electrons with with 4 hydrogen atom and complete its octet.
Carbon will be formed 4 bond . Three bond with hydrogen and one bond with carbon atom.
To know more about Lewis structure.
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