The three processes shown are listed below. 1. $\text{H}^+(\text{aq}) + \text{OH}^-(\text{aq}) \rightarrow \text{H}_2\text{O}(\text{l})$ 2. $\text{CH}_4(\text{g}) + 2\text{O}_2(\text{g}) \rightarrow \text{CO}_2(\text{g}) + 2\text{H}_2\text{O}(\text{l})$ 3. $\text{NH}_3(\text{g}) \rightarrow \text{NH}_3(\text{l})$ Which one of the following statements is correct?
- ANone of the processes have a positive enthalpy change.
- BOnly process 1 has a positive enthalpy change.
- COnly process 2 has a positive enthalpy change.
- DOnly process 3 has a positive enthalpy change.