Density of a mixture is ρ, when fluids of densities ρ 1 and ρ 2 are mixed in the same proportion. Then: A) ρ = ρ 1 + ρ 2 2 ; B) ρ = 2 ρ 1 ρ 2 ρ 1 + ρ 2 ; C) ρ = ρ 1 2 ρ 2 ; D) ρ = ρ 2 2 ρ 1

Question

Density of a mixture is   ρ, when fluids of densities       ρ    1   and       ρ    2   are mixed in the same proportion. Then:  A)  ρ  =                    ρ        1            +              ρ        2              2  ;  B)  ρ  =            2              ρ        1                    ρ        2                            ρ        1            +              ρ        2            ;  C)  ρ  =            ρ      1      2              ρ      2      ;  D)  ρ  =            ρ      2      2              ρ      1

saltarenqa3 · Accepted Answer

The right response is A   ρ  =                    ρ        1            +              ρ        2              2  As we know,      ρ          m      i      x      t      u      r      e        =      Total mass    Total volume      [  mass   =  volume   ×   density  ] Let each liquid&#039;s volume be v. [equal proportion]   ⇒  ρ  =            (              ρ        1            ×      v      +              ρ        2            ×      v      )        v    +  v    ⇒  ρ  =            (              ρ        1            +              ρ        2            )      v              2      v          ⇒  ρ  =  (                    ρ        1            +              ρ        2              2    )

Density of a mixture is rho, when fluids of densities rho_1 and rho_2 are mixed in the same proportion.

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