The standard enthalpy changes of combustion for glucose and ethanol are $-2820$ and $-1368\,\text{kJ mol}^{-1}$, respectively. Glucose, $\text{C}_6\text{H}_{12}\text{O}_6$, can be changed into ethanol. $\text{C}_6\text{H}_{12}\text{O}_6(s) \rightarrow 2\text{C}_2\text{H}_5\text{OH}(l) + 2\text{CO}_2(g)$ Calculate the standard enthalpy change for this reaction?
- A$-1452\,\text{kJ mol}^{-1}$
- B$-84\,\text{kJ mol}^{-1}$
- C$+84\,\text{kJ mol}^{-1}$
- D$+1452\,\text{kJ mol}^{-1}$