Correct answer
A. r1. r2/(r2 – r1)
Explanation
The correct answer is r1. r2/(r2 – r1).
Hydrogen ion concentration in distilled water is________?
In washing type plate and frame filter press, the ratio of washing rate to the final filtrate rate is________?
Corrosion resisting properties of cast iron are significantly improved by the addition of 12 – 15% of________?
Air vessel fitted to a reciprocating pump________?
Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about ________ micro mho/cm3?
Sodium bicarbonate is produced during soda ash manufacture using a ________ tower?