Chemistry · THERMODYNAMICS

Given below are two statements: Statement I: Standard enthalpy of combustion is always negative for exothermic combustion reactions. Statement II: According to Hess's law, if a reaction takes place in several steps, its standard reaction enthalpy is the sum of the standard enthalpies of the intermediate reactions. In the light of the above statements, choose the most appropriate answer from the options given below:

1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.