Chemistry · THERMODYNAMICS

The thermochemical equation for the combustion of ethanol is: \( \text{C}_2\text{H}_5\text{OH}(l) + 3\text{O}_2(g) \rightarrow 2\text{CO}_2(g) + 3\text{H}_2\text{O}(l) \); \( \Delta_r H^\ominus = -1367.0\text{ kJ mol}^{-1} \) at 298 K. The value of \( \Delta_r U^\ominus \) for this reaction at 298 K is: (Take \( R = 8.314\text{ J mol}^{-1}\text{ K}^{-1} \))

1. A
   -1369.48 kJ mol⁻¹
2. B
   -1362.04 kJ mol⁻¹
3. C
   -1364.52 kJ mol⁻¹
4. D
   -1371.96 kJ mol⁻¹