Which has more density 1kg of water or 10kg of water ?

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Solution

Answer
The densities are the SAME..........
explanation :
Density is a so-called intensive property, whose magnitude does not depend on the size of the system. For a given temperature, thus 10⋅kg of water has the same density as 1⋅kg of water:
$D e n s i t y, p = \frac{M a s s}{V o l u m e}$
$p_{1} = \frac{10 . k g}{10 . L} = 1 . k g . L^{- 1} o r 1 . g c m^{- 3}$
$p_{2} = \frac{1 . k g}{10 . L} = 1 . k g . L^{- 1} o r 1 . g c m^{- 3}$
And thus $p_{1}$ and $p_{2}$ are manifestly the same.
On the other hand, there are the so-called extensive properties, mass, moles, volume, etc. whose magnitude depends on the number of particles in the system.

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