Thermochemical Equations Answers
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Consider the reaction of glucose with oxygen: C6H12O6(s) + 6O2(g) 6CO2(g) + 6H2O(l)The enthalpy of formation (Hf) for C6H12O6(s) is –1,273.02 kJ/mol, Hf for CO2(g) is –393.5 kJ/mol, andHf for H2O(l) is –285.83 kJ/mol. What is Hf for O2(g)?
A
exactly 0 kJ/molB
108 kJ/molC
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Which equation should be used to calculate Hrxn for this reaction?
A
(-393.5kJ/mol + (-285.83 kJ/mol))-(-1,273.02 kJ/mol)B
-1,273.02 kJ/mol - ((6 mol)(-393.5 kJ/mol) + (6 mol)(-285.83 kJ/mol))C
((6 mol)(-393.5 kJ/mol) + (6 mol)(-285.83 kJ/mol)) - (1 mol)(-1,273.02 kJ/mol)Did you find these answers helpful?
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