A student worked out the standard enthalpy change of formation of ethane, $\text{C}_2\text{H}_6$, by using a method that relies on standard enthalpy changes of combustion. He applied the correct standard enthalpy change of combustion values for ethane ($-1560\,\text{kJ mol}^{-1}$) and hydrogen ($-286\,\text{kJ mol}^{-1}$), but the value he chose for the standard enthalpy change of combustion of carbon was wrong. After that, he carried out the calculation accurately. His final result was $-158\,\text{kJ mol}^{-1}$. What value did he use for the standard enthalpy change of combustion of carbon?
- A$-1432\,\text{kJ mol}^{-1}$
- B$-860\,\text{kJ mol}^{-1}$
- C$-430\,\text{kJ mol}^{-1}$
- D$-272\,\text{kJ mol}^{-1}$