What is the residence time of air in the room if rate is use

Reference no: EM13300745

Suppose our classroom on average contains 75 students and has a volume of 350 m3. On average each student produces 1 kg of carbon dioxide per day. The recommended ventilation rate of fresh air to avoid excessive carbon dioxide buildup is 8 L per second per student. (a). What is the residence time [minutes] of air in the room if the recommended ventilation rate is used?

Reference no: EM13300745

Questions Cloud

Little of an essential nutrient or exposure to toxins : What term is given to the time period during which irreversible damage to the fetus may occur from specific events such as too little of an essential nutrient or exposure to toxins?

Compute the percent ionization of arsenous acid : Calculate the percent ionization of arsenous acid (H3AsO3) in solutions of each of the following concentrations (Ka = 5.1e-10.) (a) 0.217 M % (b) 0.598 M % (c) 0.726 M %

Calculate the stress at failure of a concrete test cylinder : Calculate the stress at failure of a concrete test cylinder with a measured diameter of 152.4 mm and a recorded load of 371,426N. Units of ksi.

Cause lightheadedness and orthostatic hypotension : A 75 y.o. female is admitted to the hospital after tripping and falling at home. She underwent an ORIF while in the hospital. Which of the following meds can cause lightheadedness and orthostatic hypotension? It is associated with a disease co-morbid..

What is the residence time of air in the room if rate is use : On average each student produces 1 kg of carbon dioxide per day. The recommended ventilation rate of fresh air to avoid excessive carbon dioxide buildup is 8 L per second per student.

Find out the ph of each of the solutions : Determine the pH of each of the following solutions. (a) 0.382 M hypochlorous acid (weak acid with Ka = 3e-08). (b) 0.900 M hypoiodous acid (weak acid with Ka = 2.3e-11). (c) 0.597 M pyridine (weak base with Kb = 1.7e-09).

Find the cross-sectional area of the water stream : Water flows straight down from an open faucet. The cross-sectional area of the faucet is 2.3 × 10-4m2, find the cross-sectional area of the water stream at a point 0.11 m below the faucet

Difference between internal and external acting : Discuss the process by which an actor creates a role in a play. Explain the difference between internal and external acting

Find the resulting angular speed of the student and stool : A student sits at rest on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 4.4. find the resulting angular speed of the student and the stool

User Account

All Pages