Multiple choice

When a liquid or a gas is heated, what will be the effect on its density?

  1. It increases.

  2. It decreases.

  3. It remains the same.

  4. It first decreases, then increases.

  5. It first increases, then decreases.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a liquid or gas is heated it, it expands on heating, i.e its length, area and volume increases. Hence, its density decreases.

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