Water is cooled in a cooling tower that has cross-sectional area of 20 square feet. water enters the tower at a mass flow rate of 2 pounds per hour. water is to be cooled from 120 °f to 80 °f. inlet air conditions are represented by a dry-bulb temperature of 60 °f and a wet-bulb temperature of 50 °f. a mass-transfer coefficient of 80 pounds per hour per foot per mole ratio is expected. air is flowing at a mass velocity, g of 800 pounds per hour per square foot. estimate the height of the tower.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.