2) Some ammonia (NH3) goes through an isothermal process. Its initial temperature is 42 °F and its initial volume is 20 m. The pressure gauge on the process shows that

the pressure goes from 324 kPa to 133 kPa. . How much total work has been done (you must specify if the work is added-to or removed-from the cylinder)?? C. What is the total change in enthalpy? С.