Question

According to Graham's Law of Diffusion for gases through liquids, how much more soluble is CO₂ compared to O₂ ?

a. 2.4 times
b. 18.9 times
c. 1.2 times
d. 22.2 times

Answer 1

CO2 is approximately 0.894 times as soluble as O2.

Step-by-step explanation:

Graham's Law of Diffusion states that the rate of diffusion of a gas is inversely proportional to the square root of its molar mass. In other words, lighter gases will diffuse faster than heavier gases. Since CO2 has a molar mass of 44 g/mol and O2 has a molar mass of 32 g/mol, we can calculate the ratio of their rates of diffusion:

Ratio = sqrt(32)/sqrt(44) = 0.894

So, CO2 is approximately 0.894 times as soluble as O2. Therefore, the correct answer is c. 1.2 times.