Fermentation of glucose

Chemistry Level pending

The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy from the formation of \(1\) mole of the compound from its constituent elements, with all substances in their standard states at \(101.3\) kPa and \(298\) K. The above shows the enthalpy change in formentation of glucose(C\(_6\)H\(_{12}\)O\(_6\)) to produce ethanol(C\(_2\)H\(_5\)OH). Which of the following statements is correct?

a) The standard heat of formation of C\(_6\)H\(_{12}\)O\(_6\)(\(s\)) (\(\Delta\)H) is \(-1260\) kJ/mol.
b) The standard heat of formation of C\(_2\)H\(_5\)OH(\(l\)) (\(\Delta\)H) can be calculated from the above data.
c) The standard enthalpy of reaction(\(\Delta\)H) when \(1\) mol of C\(_6\)H\(_{12}\)O\(_6\)(\(s\)) is fermented to produce C\(_2\)H\(_5\)OH(\(l\)) and CO\(_2\)(\(g\)) is \(82\) kJ.


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