Calculate the total pressure ina 10 L cylinder which contains 0.4 g helium ,1.6 of oxygen and 1.4 g nitrogen at 27^(@)C. Also calculate the partial of helium gas in the cylinder. Assume ideal hehaviour for gases.

Calculate the total pressure ina 10 L cylinder which contains 0.4 g he

1.	Calculate the total pressure ina 10 L cylinder which contains 0.4 g helium ,1.6 of oxygen and 1.4 g nitrogen at 27^(@)C. Also calculate the partial of helium gas in the cylinder. Assume ideal hehaviour for gases.
Answer» <P> SOLUTION :Total number of moles `=(04)/(4)+(16)/(32)+(14)/(28)=0.1+05+005=02` moles. `pV=nRT` `pxx10L=02xx082xx300rArr p=(246xx02)/(10)` `p=0492 atm` `P_(He)(0.1)/(0.2)xx0492=0246` atm