What happens to the density of a fluid when it is heated?

Practice Questions

Q1
What happens to the density of a fluid when it is heated?
  1. Increases
  2. Decreases
  3. Remains the same
  4. Depends on the fluid

Questions & Step-by-Step Solutions

What happens to the density of a fluid when it is heated?
  • Step 1: Understand what density is. Density is how much mass is in a certain volume of a substance.
  • Step 2: Know that fluids can be liquids or gases.
  • Step 3: When a fluid is heated, its particles gain energy and move faster.
  • Step 4: As the particles move faster, they spread out more, causing the fluid to expand.
  • Step 5: When the fluid expands, the same mass of fluid takes up a larger volume.
  • Step 6: Since density is mass divided by volume, if the volume increases and the mass stays the same, the density decreases.
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