Calculate the % change in concentration of oxygen when the water temperature rises from 10degree C to 15degree C.show your working?
To calculate the percentage change in concentration of oxygen when the water temperature rises from 10°C to 15°C, we need the initial and final concentrations of oxygen in the water.
However, the concentration of oxygen in water is affected not only by temperature but also by other factors such as atmospheric pressure and salinity. So, without additional information about these factors, it is difficult to accurately calculate the percentage change in concentration.
If you have the necessary information, follow these steps to calculate the percentage change:
1. Determine the initial concentration of oxygen in the water at 10°C. Let's say it is "C1" (in some units, like mg/L).
2. Determine the final concentration of oxygen in the water at 15°C. Let's call it "C2" (in the same units as C1).
3. Calculate the absolute change in concentration, which is the difference between C2 and C1: Absolute change = C2 - C1.
4. Calculate the percentage change using the formula: Percentage change = (Absolute change / C1) * 100.
For instance, if the initial concentration (C1) of oxygen is 8 mg/L and the final concentration (C2) at 15°C is 10 mg/L, the calculations look as follows:
Absolute change = 10 mg/L - 8 mg/L = 2 mg/L
Percentage change = (2 mg/L / 8 mg/L) * 100 = 25%
Please note that these values are only for illustrative purposes, and actual concentrations may depend on various factors. It is vital to consider changes in atmospheric pressure, salinity, and other parameters to accurately determine the percentage change in oxygen concentration.