An air tight laboratory is 4 m long and 3m wide and 3m high. the room...

An air tight laboratory is 4 m long and 3m wide and 3m high. the room is under normal atmospheric pressure and has a temperature of 20C A 10kg block of dry ice is then left in the room and evaporated into carbon dioxide gas molecular mas 44u. assuming that the temperature of the room does not change appreciably what will it's final pressure be ? stay out of the room as you may die from hypercapnia or carbon dioxide poisoning

Expert Solution

As, PV = nRT

=> 1.013 * 10⁵ * (4 * 3 * 3) = n * 8.314 * 293.15

=> n = 1496.27 moles

Final moles of gas = 1496.27 + 10/0.044

= 1723.54 moles

=> it's final pressure be = (1723.54 * 8.314 * 293.15)/(4 * 3 * 3)

= 1.1668 * 10⁵ Pa

= 1.152 atm

genius_generous answered 2 years ago

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