Which best describes what solid-state physics studies? - how quantum theory explains the large-scale properties of solids - how the atomic scale structure of solids explains their large-scale properties - how the large-scale structure of solids explains their atomic scale structure - how the large-scale properties of solids explains quantum theory

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).