Which source is considered a primary source of scientific information? an original research article in a scientific journal a report about a new scientific discovery in the newspaper a book that compiles important new research findings a public lecture at a museum given by the scientist who did the research

Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).