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The limit of solubility (maximum solubility) of oxygen gas (O₂) in water was measured, in mg of oxygen per 100 g of water, at a number of different temperatures - Junior Cycle Science - Question a - 2008
Question a
The limit of solubility (maximum solubility) of oxygen gas (O₂) in water was measured, in mg of oxygen per 100 g of water, at a number of different temperatures. The... show full transcript
Worked Solution & Example Answer:The limit of solubility (maximum solubility) of oxygen gas (O₂) in water was measured, in mg of oxygen per 100 g of water, at a number of different temperatures - Junior Cycle Science - Question a - 2008
Step 1
Draw a graph of solubility (y-axis) against temperature (x-axis)
Answer
- Prepare the Axes: Label the y-axis as 'Solubility (mg/100 g water)' and the x-axis as 'Temperature (°C)'.
- Plot the Data Points: Based on the table provided:
- (0, 7.0)
- (20, 4.3)
- (40, 3.0)
- (60, 2.3)
- (80, 1.4)
- (100, 0.0)
- Draw the Curve: Connect the points with a smooth curve, indicating the trend that solubility decreases with increasing temperature.
Step 2
Step 3
Step 4
What implication, which could be inferred from the information in the graph, might global warming have for animals that live in water e.g. fish?
Answer
One implication of global warming is that increased water temperatures could lead to lower oxygen levels in aquatic environments. Fish and other aquatic organisms will face challenges as less oxygen is available for respiration, which could threaten their survival.