16 grams of oxygen, 14 grams of nitrogen and 11 grams of carbon dioxide are mixed in an enclosure of volume 5 litres and temperature 27° C. The pressure exerted by the mixture is

P=P1+P2+P3 P=n1RTV+n2RTV+n3RTVP=n1+n2+n3RTV              here number of moles n=massmolecular weight;n1=1632=0.5;n2=1428=0.5;n3=1144=0.25;R is universal gas constant=8.3J/mol-K;T is absolute temperature=27+273=300K;V is volume=5liter=5×10-3m3 P=(0.5+0.5+0.25)(8.31)(300)5×10−3P=6.23×105Nm−2