Answer each question yes or no. Must two quantities have the same dimensions (a) if you are adding them? (b) If you are
multiplying them? (c) If you are subtracting them? (d) If you
are dividing them? (e) If you are equating them?

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).