Question

QUESTION 8 How does the internal energy of the ice and water mixture change if the temperature does not rise while the ice is melting? It decreases, because you need to use energy to make a freezer run, but ice melts spontaneously. No enough information to determine. It increases, because it takes more energy for water molecules to be disordered than to be ordered. It remains the same, because both are at the same temperature. QUESTION 9 Suppose you start with 200g of ice at 0 °C. Calculate the amount of heat energy that must be transferred to the ice to melt it. (Use 334kJ/kg for the latent heat of fusion, 2.26X10kJ/kg for the latent heat of vaporization, and 4.19kJ/kg°C for the specific heat of water.) 838) 0.84) 450k) 66.8) 450 66.8k) 6680k) 45000k) Not enough information: you need to know how much water is with the ice.

Answer 1

③ when ice is melted, heat is absorbed AQ = tve, volume change is approx zero AQ= Autw cwro) AQ= AU = tve CstScanda neithal energy inceases. anner

ice ☺ 0 - walu roogm cooxo3 334k Q = mLf= 200X0 X 334K] Cs Scanned with = 66.8 kJ CamScanner