GAS LETHAL CONENCTRATION (PPM) AMMONIA 300 CARBON DIOXIDE 40000 CARBMON MONOXIDE

Question

GAS                                                                                                       LETHAL CONENCTRATION (PPM)

AMMONIA                                                                                                         300

CARBON DIOXIDE                                                                                            40000

CARBMON MONOXIDE                                                                                 1200

CHLORINE                                                                                                           10

PHOSGENE                                                                                                         2            

PROPANE                                                                                                            2100

A car in a garage emits carbon monoxide (CO) at a rate that increases the CO in the garage by .25 parts per thousand per minute. The car also emits carbon dioxide (CO2) in the by 15000 ppb per minute. How long does it take for the garage to become a lethal environment? Which gas will kill you first? Show work

Explanation / Answer

From the table we now:

First we must convert the emision of the gases to Parts Per Million:

Now, we divide the lethal concentrations by the rates of emision in order to get the time it takes for each gas to reach their lethal concentration:

Therefore, it takes 4 mintues and 48 seconds for the garage to become a lethal environment. The gas that is going to kill first is Carbon Monoxide.

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