Differentiate between the enthalpy of formation of
Interpretation:
The difference between enthalpy of formation of
Concept introduction:
Hess’s law: According to this law, total enthalpy change of a reaction is the sum of all the reactions regardless of the steps or stages of reaction.
Explanation of Solution
The water in liquid state will have higher change in enthalpy as compared to water in gaseous state due to change in intermolecular interactions.
In the process the combustion of methane:
Combustion in any reaction is exothermic reaction. So heat is produced that means
Also, it is important to state the physical state of water in any reaction because while breaking the bonds in any reaction, the amount of heat requires depends on the physical state. The change in enthalpy for water in liquid and vapor state is different.
Chapter 15 Solutions
Chemistry: Matter and Change
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