Density of a gas is found to be 5.46 g//dm^(3) at 27^(@)C and at 2 bar pressure. What will be its density at STP ?

Density of a gas is found to be 5.46 g//dm^(3) at 27^(@)C and at 2 bar

1.	Density of a gas is found to be 5.46 g//dm^(3) at 27^(@)C and at 2 bar pressure. What will be its density at STP ?
Answer» Solution :`d=(MP)/(RT)`. For the same gas at different temperatures and pressure, `(d_(1))/(d_(2))=(P_(1))/(T_(1))XX(T_(2))/(P_(2))`. Here,`"" d_(1)=5.46 g dm^(-3),T_(1)=27^(@)C=300 K,P_(1)=2" bar"`. At STP,`"" d_(2)=? "" T_(2)=0^(@)C=273 K, P_(2)=1" bar"` `:.(5.46 g dm^(-3))/(d_(2))=(2" bar" )/(300 K)xx(273 K)/(1" bar" )` or `"" d_(2)=3 g dm^(-3)`