Question 18
Density and Upthrust40m3 of liquid P is mixed with 60m3 of another liquid Q. If the density of P and Q are 1.00kgm−3 and 1.6kgm−3 respectively, what is the density of the mixture?
- A.0.05kgm−3
- B.1.25kgm−3
- C.1.30kgm−3
- D.1.36kgm−3
Show the answer and explanation
Answer: D (1.36kgm−3)
Explanation
Total mass = 40 × 1.00 + 60 × 1.6 = 136 kg; total volume = 100 m3. Density = 136 ÷ 100 = 1.36 kg m−3.