You have 300g of ice at 1 bar of pressure from an initial temperature of -50°C, until it all turns into steam at 170°C.
1. How much heat is needed to do this?
2. What is the change in entropy of the sample?
Assume specific heat capacity is 2.11 J/gK for ice, 4.19 J/gK for water, 2.0 J/gK for steam. And the latent heat for melting ice is 333 J/g, for boiling water is 2260 J/g.
Give answers in SI units, write it neatly and show ALL work (explanations for steps would be helpful).
I will mark incorrect if it's illegible or all work isn't shown.