Physics 9702 · AS & A Level · Density and pressure

Density and pressure — practice question

A volume of $1.5\,\text{m}^3$ of water is blended with $0.50\,\text{m}^3$ of alcohol. The density of water is $1000\,\text{kg m}^{-3}$ and the density of alcohol is $800\,\text{kg m}^{-3}$. The volume of the mixture is $2.0\,\text{m}^3$. What is the density of the mixture?

  • A$850\,\text{kg m}^{-3}$
  • B$900\,\text{kg m}^{-3}$
  • C$940\,\text{kg m}^{-3}$
  • D$950\,\text{kg m}^{-3}$

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