How do I solve this?

The first law of thermo is: dU = dQ - dW, and use that and the equation of enthalpy: h = u + pv to solve for this. All it is asking is how to get the qmelt equation from the first law of thermodynamics

We want to quantify the energy necessary to melt 1kg of ice water at latm. To do so, we will add ice cubes to a container filled with liquid water and measure the temperatures before and after. The con- tainer is open (to the surrounding air). We will consider the ideal case of no heat transfer with the outside. Consider a mass m1 of liquid water at temperature T1 and a mass m0 of ice water at temperature To. State 1 is right after the insertion; State 2 is after a very long time: namely pure water at temperature T2. We will consider {mg + m1} as the system. We will also assume the ice cubes were at T0 = 0C. 2. Using the first law of thermodynamic, show that the specific heat of melting is given by: m1 am\" a h; h; = c To T: + m (Tl m] -o with C the heat capacity of liquid water, and I15 and h; the specific enthalpies of saturated solid and liquid water (respectively) at T = 06