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

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

Options:

Correct Answer: Decreases

Solution:

When a fluid is heated, its density typically decreases as the fluid expands.

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

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.

Density and Temperature Relationship – As temperature increases, the kinetic energy of the fluid molecules increases, causing them to move apart and the fluid to expand, which results in a decrease in density.