"A Nichrome heater dissipates 500 W when the appliedpotential difference is 110 V and the wire temperature is 800 C. What would be the dissipation rate if the wire temperature wereheld at 200 C by immersing the wire in a bath of cooling oil? Theapplied potential difference remains the same, and afor Nichromeat 800 C is 4.0104K1"

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).