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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
8 Nov 2021

Given information

Volume of room is .

Room contains  carbon dioxide initially.

Fresh air flows into the room at a room of and contains  carbon dioxide.

Step-by-step explanation

Step 1.

Let be the percentage of carbon dioxide at time .

So,

Amount of carbon dioxide in Room Volume of Room  

                                                     

Rate of change of carbon dioxide in Room is

          

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