You are in an old spy movie and have been locked into a small room (volume 1,000 ft3). You suddenly realize that a poison gas has just started entering the room through a ventilation duct and that the poisonous air is not leaving the room. What is the correct formula for mass conservation? you are safe as long as the concentration is less than 100 mg/m3. If the ventilation airflow rate in the room is 100 ft3/min and the incoming gas concentration is 200 mg/m3, how long do you have to escape? (in minutes)

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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You are in an old spy movie and have been locked into a small room (volume 1,000 ft3). You suddenly
realize that a poison gas has just started entering the room through a ventilation duct and that the
poisonous air is not leaving the room. What is the correct formula for mass conservation? you are safe
as long as the concentration is less than 100 mg/m3. If the ventilation airflow rate in the room is 100
ft3/min and the incoming gas concentration is 200 mg/m3, how long do you have to escape? (in
minutes)
Transcribed Image Text:You are in an old spy movie and have been locked into a small room (volume 1,000 ft3). You suddenly realize that a poison gas has just started entering the room through a ventilation duct and that the poisonous air is not leaving the room. What is the correct formula for mass conservation? you are safe as long as the concentration is less than 100 mg/m3. If the ventilation airflow rate in the room is 100 ft3/min and the incoming gas concentration is 200 mg/m3, how long do you have to escape? (in minutes)
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