Question

Density of gas is found to be 5.46 g/dm3 at 21 degree celsius at 2 bar pressure what will be its density at stp

Answer 1

Answer:

Density ρ = p x M/ RT

F rom the given data,

5.46 = 2 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/ 2 x M)

= 300 / 273 X 2 = 3.00 g/dm3

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