1.

Derive the relation between Density and Molar mass of a gaseous substancefrom ideal gas equation.

Answer»

SOLUTION :WKT PV= nRT is IDEAL gas equation rerranging `N=(PV)/(RT)` [ but `N=("mass")/("MOLECULAR mass")=(m)/(M)]`
`:. (m)/(M)=(PV)/(RT)`
`(m)/(V)*(1)/(M)=(P)/(RT)` [ but `(m)/(v)` density (d)]
`(d)/(M)=(P)/(RT)`
`:. M=(dRT)/(P)`


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