Question

Denisty of a gas is found to be 3.46 g / dm3 at 27degree celcius at bar pressure what will be its density at STP​

Answer 1

Answer:

For an ideal gas

Density ρ = p x M/ RT

F rom the given data,

5.46 = 1 x M/ 300 x R ………(1)

ALSO ρSTP = 1 x M/ 273 x R ………..(2)

FROM (1) & (2) ,WE GET

ρSTP = (1 x M/ 273 x R) x (300 x R/ 1 x M)

= 300 / 273 X 1 = 1.098g/dm3

Hence, the density of the gas at STP will be 1 g dm–3.