Problem on molar flow rate

Question

I) Sulphur dioxide (SO₂) with a volumetric flow rate 5000cm³/s at 1 bar and 100⁰C is mixed with a second SO₂ stream flowing at 2500cm³/s at 2 bar and 20⁰C. The process occurs at steady state. You may assume ideal gas behaviour. For SO₂ take the heat capacity at constant pressure to be C_P/R = 3.267+5.234x10^-3 T

a. What is the molar flow rate of the exit stream?
b. What sit eh temperature of the exit stream?

II. Consider the cooling of a glass of tap water by the addition of ice. The glass contains 400 ml of tap water at room temperature (25⁰C) to which 100gm of ice is added. Assume the glass is adiabatic and that thermal equilibrium is obtained. The ice is originally at-10⁰C when removed from the freezer and put in the glass for ice H_fus = -6.0 ( Kj/ mol)

a. What is the final temperature?
b. What % of the cooling  is achieved by leant heat ( the  melting of ice)?