What is the maximum volume in litre occupied by the gas released at 273K and 0.1 atm when 0.025mol of $C{O}_2$ is passed over 3.55g of  $K{O}_2$?
(Given that: GAW’s K=39, O=16, C=12 and R=0.0821 L atm/mol Kelvin,  $0.0821\times 273=22.4,$ assume ideal conditions, volume of 1 mole of gas at STP = 22.4L, STP conditions: 1 atm, 273 K)