Answer to Question #101158 in Physical Chemistry for Ghost

Question

What is the value of density of mercury non si units?convert and express this quantity in si unit.

Answer 1

Answer: Density of mercury in CGS unit(density of mercury non si units) is 13.5 gm/cm³

Conversion from CGS to SI unit:

SI units of density is kg/m³ and CGS units of density is gm/cm³.

1 kg = 1000 grams, 1 m = 100 cm

1 m³ = 1 m X 1 m X 1 m

= 100 cm X 100 cm X 100 cm

= 10^{^6} cm3

So, 1 m³ = 10^{^6} cm³

So, 1 kg/m³ = 1000 gm/10^{^6} cm³

1 kg/m³ = 10^{^-3} gm/cm³

1 gm/cm³ = 1000 kg/m³

Now, 13.5 gm/cm³ = 13.5 X 1000 kg/m³ = 13500 kg/m³.

So, in SI unit density of mercury is 13500 kg/m³.