Calculate the standard enthalpy change for the fermentation process, in which glucose (C6H12O6) is converted into ethanol (C2H5OH) and carbon dioxide (CO2).
||Enthalpy of Formation,
|CO2 (g)||−393.5 kJ/mol|
|CO2 (aq)||−412.9 kJ/mol|
|C2H5OH (l)||−276.98 kJ/mol|
|C6H12O6 (s)||−1,274.5 kJ/mol|
|H2O (g)||−241.8 kJ/mol|
|H2O (l)||−285.8 kJ/mol|
|O2 (g)||0 kJ/mol|
Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and surroundings. Here system is the substance for which the heat content is studied and remaining part of universe is consider as the surroundings.
The heat content of any substance can be expressed in terms of heat capacity or specific heat. Heat capacity can be defined as the amount of heat to be supplied to a given mass of substance to produce a unit change in its temperature.
The enthalpy of formation of reactant and product can be used to calculate the enthalpy change for the given reaction.
The given reaction of fermentation of glucose to ethanol and carbon dioxide gas is:
Substitute the given values of enthalpy of form...
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