Zero. A 5.0 [kg]-block of ice (C₁ = 2.2 × 10³ [J/(kg - K)]) kept at 0.0[°C] was placed in thermal contact with 5.0 [kg] of liquid water (C = 4.2 × 10³ [J/(kg - K)]) in a that was also kept at 0.0[°C]. The system was left in a well-insulated (thermally) container. Upon reaching thermal equilibrium, what is the final mass ratio m/mw of ice and liquid water? (Lf = 3.3 × 10³J/kg)
