Explain how many grams of water at 25 C must be poored on the above ice no water in flask initially, if we want that-
a) All the content freezes to -2 C;
b) The final temperature is 0C and half of the added water freezes;
c) The final temperature is 0C and half of the ice melts;
d) The final temperature is +2C.
Explain what is the entropy change in these processes?