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

Explanation

`(d_(1)T_(1))/P_(1)=(d_(2)T_(2))/P_(2)`
`d_(1)=5.46 g dm^(-3)," " d_(2)=?`
`T_(1)=273+27=300 K, " "T_(2)=273 K`
`P_(1)=2 "bar"," "P_(2)=1 "bar"`
`(5.46xx300)/2=(d_(2)xx273)/1`
or `d_(2)=(5.46xx300)/(2xx273)=3 g dm^(-3)`