oose the most complete and correct end to this statement. "A process is reversible if: The system naturally returns to it's coiginal state The system can be returned to it's originat state The emvitonnent can be retumed to it's original state The sveten and ervironment can be returned to their original state Question 2 1pts A gas in a chamber undergoes a ceversible expansion process. Assume that no heat enters or leaves the chamber during this process. By definition, what must stay constant through this process for the process to be considered reversible? tempenture pressure enthalpy entropy Question 3 1 pts Ageothermal power plant uses an underground hent source T=294C for its hot reservoir and wises the nearby ocean F=20C for its cold reservoir: Assuming that we had ideal components. what is the maximum thermodynamic efficiency this plant could achieve. Provide your answer as a percentage (0%1005) accurate to one decimal place