Scenario 2: The equation below represents the conversion of glucose into ethanol and carbon dioxide.
This process is part of the normal metabolism of certain organisms such as yeast.
$C_6H_{12}O_6(s) \rightarrow 2 C_2H_5OH(l) + 2 CO_2(g)$
Question 2a: Determine the standard enthalpy change for the reaction represented by the equation
above. Show all work. (2 marks)
The ethanol produced by this reaction can further react with oxygen to produce ethanal ($C_2H_4O$), which
can further be converted into ethanoic acid ($CH_3COOH$). Two equations pertaining to these processes are
displayed below:
$2 H_2O(l) + 2 C_2H_4O(l) \rightarrow 2 C_2H_5OH(l) + O_2(g), \Delta H = +102.0 kJ$
$CH_3COOH(l) \rightarrow C_2H_4O(l) + \frac{1}{2} O_2(g), \Delta H = +441.5 kJ$
Question 2b: Using your answer from Question 2a and the two equations listed above, determine the
standard enthalpy change for the reaction represented by the equation below. Show all work. (2 marks)
$2 CH_3COOH + 2 CO_2(g) + 2 H_2O(l) \rightarrow C_6H_{12}O_6(s) + 2 O_2(g), \Delta H = ???$
