I got these results from my dissolved oxygen lab:
Temperature Dissolved Oxygen
in Celcius (mg/L)
17 5.8
21 5.4
23 5.3
27 5.1
I understand that as the temperature increases the dissolved oxygen concentration decreases but i don't understand how to answer this question: does your data indicate how the amount of dissolved oxygen in the water is affected by the temperature of the water. explain.
well did the dissolved oxygen levels go down with the rise in temperature or did they go up or did they stay the same in your experiment
To follow up on venessa's answer, of course the data indicate that what you understand is true. Doesn't the dissolved oxygen decrease (in mg/L) when the temperature goes up? Looks that way to me. By the way, note the correct spelling of celsius.
To answer the question, you can analyze the data and observe the relationship between temperature and dissolved oxygen concentration. From the given results, it can be observed that as the temperature increases, the dissolved oxygen concentration decreases. This pattern suggests an inverse relationship between temperature and dissolved oxygen.
To explain this relationship further, you can look into the properties of gases and how they behave in water. When water is warmer, it has a reduced ability to hold onto gases like oxygen. This is because gases are less soluble in warmer liquids compared to colder ones. As the temperature increases, the water molecules become more energetic and move around faster, creating less space for oxygen molecules to dissolve.
As a result, when you conducted the dissolved oxygen lab with different temperatures, the higher temperature samples had lower dissolved oxygen concentrations, as indicated by the data. The colder water samples had higher dissolved oxygen concentrations because the cooler temperatures allowed more oxygen to dissolve.
Therefore, based on the data, it can be concluded that the amount of dissolved oxygen in the water is indeed affected by the temperature of the water. Higher temperatures lead to a decrease in dissolved oxygen concentration, while lower temperatures allow for higher dissolved oxygen concentrations.