| Date | November 2019 | Marks available | 1 | Reference code | 19N.1.SL.TZ0.8 |
| Level | Standard level | Paper | Paper 1 | Time zone | TZ0 / no time zone |
| Command term | Identify | Question number | 8 | Adapted from | N/A |
Question
What is a property of water?
A. Water has a low specific heat capacity so large increases in heat energy cause a small temperature change.
B. Water is an excellent solvent for non-polar substances.
C. Covalent bonds between adjacent water molecules are responsible for its unique properties.
D. Water molecules are highly cohesive which is important for transport in xylem.
Markscheme
D
Examiners report
Syllabus sections
- 17N.1.SL.TZ0.07: Which property of water accounts for its moderating effects on the Earth’s atmosphere? A....
- 17N.2.SL.TZ0.03a: The figure represents a water molecule. Draw a second water molecule to show how bonds can...
- 21M.1.SL.TZ1.12: What is the term for the attraction of water molecules to other water molecules? A. Surface...
- 18M.1.SL.TZ2.8: At room temperature, water is a liquid and methane is a gas. Which molecular property...
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19M.1.HL.TZ1.6:
Water has a specific heat capacity of 4.2 J g–1 K–1 at room temperature, a latent heat of vaporization equal to 2257 J g–1, and a boiling point of 100 °C. What are the specific heat capacity, latent heat of vaporization and boiling point of methane?
[Source: © International Baccalaureate Organization 2019]
- 17N.3.SL.TZ0.01c: Predict the temperature of the water in the cups after 3 hours.
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20N.3.SL.TZ0.3b:
Outline how the carbon dioxide could be removed from the water used to irrigate the plant.
- 22M.2.SL.TZ2.3b.i: Distinguish between the thermal properties of water and methane.
- 17M.1.SL.TZ2.27: The bacterium Neisseria gonorrhoeae causes infections related to the human reproductive...
- 17M.1.SL.TZ1.21: Cladograms can be created by comparing DNA or protein sequences. The cladogram on the left is...
- 22M.2.HL.TZ1.6a: Outline how the properties of water make it an effective coolant for the body.
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20N.2.HL.TZ0.7a:
Outline how hydrogen bonds form in water.
- 17M.1.HL.TZ2.7: Which can be explained by the solvent properties of water? A. Sodium chloride is transported...
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17N.3.SL.TZ0.01d:
Explain, with reference to the thermal properties of water, how this experiment helps demonstrate how humans respond to overheating.
- 21M.1.SL.TZ2.7: What property of water accounts for its usefulness as a coolant in sweat? A. High specific...
- 19M.1.SL.TZ1.7: Which substance must be transported in the blood by lipoprotein complexes? A....
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17N.3.SL.TZ0.01a:
Calculate the change in temperature in each cup after 20 minutes.
Uncovered:
Covered with wet tissue paper:
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21N.2.HL.TZ0.7a:
Outline how the properties of water make it an ideal transport medium in plants.
- 19M.1.SL.TZ2.6: Where do hydrogen bonds form? A. Between the slight negative charge of hydrogen and slight...
- 17M.2.HL.TZ1.1f.ii: Suggest a reason for the greater expression of the gene for the urea transporter after an...
- 17M.2.HL.TZ2.3a: Outline the properties of water molecules that permit them to move upwards in plants.
- 16N.1.SL.TZ0.8: Which properties explain the ability of water to dissolve solutes? I. Polarity of water...
- 21N.1.SL.TZ0.7: What is the benefit to living organisms that water has a high specific heat capacity? A....
- 17M.2.SL.TZ1.1c: Estimate how much smaller drilled oysters raised in seawater at a high CO2 concentration were...
- 18M.1.SL.TZ1.7: Researchers have developed a skin patch which can detect and measure very small...
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17N.3.SL.TZ0.01b:
State two conditions that must be the same for each cup at the start of the experiment.
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17N.2.SL.TZ0.03b:
Water has important solvent properties. Explain these properties using an example to illustrate your answer.
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18M.2.HL.TZ1.6c:
Hydrogen bonds can exist both within and between molecules in living organisms and have an impact on their structure and function. Explain the importance of hydrogen bonding for living organisms.
