A water chemist measured and recorded the air temperature at 27°C when he should have measured the water temperature, which was

Question

3 years ago

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A water chemist measured and recorded the air temperature at 27°C when he should have measured the water temperature, which was

only 21°C. As a result of this error, will the dissolved oxygen concentration be reported as being higher or lower than it should be? Explain.

Chemistry

1 answer:

Leno4ka [110] · Answer 1 · 2022-05-31T11:23:15+03:00

Answer:

See explanation

Explanation:

The dissolution of oxygen in water is exothermic. Hence, at higher temperature, less oxygen is dissolved in water.

If the chemist commits an error and records 27°C instead of 21°C, the dissolved oxygen concentration will be found to be lower than it should be at 27°C because dissolution of gases in water is exothermic.