What is the value of activity coefficients for monovalent and divalent ions for a potable water at an ionic strength of 0.01 M?

Civil Engineering : Waste Water Engineering - Quiz(MCQ)

0.9 in both the cases

0.9 and 0.66 respectively.

0.66 in both the cases

0.66 and 0.9 respectively

Correct Answer : 0.9 and 0.66 respectively.

Explanation : The value of the activity coefficient for the monovalent ion is 0.9. The value of the activity coefficient for the divalent ion is 0.66. The activity coefficients for neutral species is negligible.

Recently Updated in Waste Water Engineering Questions

What is the growth of huge amounts of algae and other aquatic plants leading to the deterioration of the water quality called?

Algae growth

Eutrophication

Denitrification

Nitrification

Correct Answer : Option (B) : Eutrophication

Explanation : Eutrophication is the growth of huge amounts of algae and other aquatic plants leading to the deterioration of water quality. The untreated wastewater is rich in organic matter which demands oxygen.