Starting as a solid at -25°C, a sample of water is heated at a constant rate until the sample is at 125°C. This heating occurs at standard
pressure. The graph below represents the relationship between temperature and heat added to the sample.
Heating Curve for H2O
125
F
D
100.
E
75
Temperature (°C)
50.
25
BC
0-
-25-
<
12
20.
28
36
44
52
60.
Heat Added (kJ)
a. Explain, in terms of heat of fusion and heat of vaporization, why the heat added during interval DE is greater than the heat added
during BC for this sample of water.
b. Describe what happens to both the potential energy and the average kinetic energy of the molecules in the water sample duirng
interval AB
c. Using the graph, determine the total amount of heat added to the sample during interval
Please hurry answering all!:)
Answers: 2
Chemistry, 22.06.2019 06:00
An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.
Answers: 2
Chemistry, 22.06.2019 16:00
If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml
Answers: 1
Chemistry, 23.06.2019 04:20
The graph shows one consequence of urban sprawl. how did urban sprawl contribute to the change in biodiversity
Answers: 2
Starting as a solid at -25°C, a sample of water is heated at a constant rate until the sample is at...
Mathematics, 05.10.2019 04:30
Mathematics, 05.10.2019 04:30
Social Studies, 05.10.2019 04:30
Social Studies, 05.10.2019 04:30
Mathematics, 05.10.2019 04:30
History, 05.10.2019 04:30
Biology, 05.10.2019 04:30
Computers and Technology, 05.10.2019 04:30
Biology, 05.10.2019 04:30