A quantity of 22 g dry ice is taken in an open bottle of one litre capacity and the bottle is then closed properly. If temperature of bottle is maintained at 27°C for long time, in which all the CO 2

Question

A quantity of 22 g dry ice is taken in an open bottle of one litre capacity and the bottle is then closed properly. If temperature of bottle is maintained at 27°C for long time, in which all the CO 2 is sublimed, the pressure in bottle is (Ambient condition is 1 atm and 27°C)

TestHub · Accepted Answer

n(CO 2 ) = 22/44 = 0.5 mol, giving P CO2 = (0.5 × 0.0821 × 300)/1 = 12.315 atm. The bottle was closed with air already inside at 1 atm, so P total = 12.315 + 1 = 13.315 atm. Matches (a).

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