Question

10 g of O₂ were introduced into an evacuated vessel of 5 L capacity at 27°C, Calculate pressure of gas in bar in the container [R = 0.083 bar L K^-1 mol^-1] [At. mass of O = 16u]

Answer 1

PV = raRT bar

 P × 5 L = 10/32 × 0.083 × 300 K 

P = 24.9 X 10/160 = 249/160 

= 1.556 bar