-7.0 . C. As the season changes, how much heat must be added to the water to make it a comfortable 25. C for the birds? (10 pts) 5. An igloo is made of 224 blocks of ice at 0 C, each with a mass of 12.0 kg. How much heat must the ice gain in order to melt the entire igloo? (5 pts) m - 2 24bis( 12,ohs) = 2688 #8 5. 9 X 10 * J Q= mLF 3 068she ( 3 3. 5 X 10 5/he = 9.004 80 = 9x 10 6. A puddle filled with 20.0 kg of water is completely frozen to-6.0 C in the middle of the winter. How much heat must the puddle absorb in order to melt the ice and warm the water up to 20 C during the spring thaw ? ( 5 pts ) ML 7. Before ironing his shirt for work, Matt drops some water on his iron to test whether it is hot enough to iron his clothes. How much heat is needed to vaporize a 5.0 x 10-4 kg drop of 20 C water? (5 pts) MCA 8. Rylan takes a 42 g ice cube out of his freezer and puts it in a small pan on the stove to heat it. The ice cube has an initial temperature of -11 C. How much total heat energy is required to cause the ice cube to change to water vapor at 111 C? (Remember - AT from Ti to melting point, phase change from solid to liquid, AT from O C to 100 C, phase change from liquid to water vapor and ATfrom 100 C to 111) (30 pts) Q1 = Q2 = Q 3 = Q4 = head of rain weta - 334 5 / Q5 = QTOTAL =