1.How much heat (in kJ) is required to warm 13.0 g of ice,initially at -10.0 ∘C, to steam at 109.0 ∘C? The heat capacity ofice is 2.09 J/g⋅∘C and that of steam is 2.01 J/g⋅∘C.
2. How much energy is released when 42.5 g of water freezes?
3. Suppose that 0.86 g of water condenses on a 75.0 g block ofiron that is initially at 24 ∘C.
If the heat released during condensation goes only to warmingthe iron block, what is the final temperature (in ∘C) of the ironblock? (Assume a constant enthalpy of vaporization for water of44.0 kJ/mol.)
Express your answer using two significant figures.
