Consider a Carnot-cycle heat pump with R-134a as the working fluid. Heat is absorbed into the R- 134a at 0 C, during which process it changes from a two-phase state to saturated vapor. The heat is rejected from the R-134a at 60 C and ends up as saturated liquid. 1. Determine the properties T, v, p, u, h, s, and x (when defined) for all the four states 2. Determine the COP for the heat pump P 1682 294 3 60C 4 0C 2 U 60 0 3 4 1682 2 294