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How does the size of most substances change when heated?
  • a)
    They change to a different shape.
  • b)
    They remain the same size.
  • c)
    They contract.
  • d)
    They expand.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
How does the size of most substances change when heated?a) They change...
Most substances expand when heated due to increased molecular motion. As temperature rises, the molecules gain kinetic energy and move farther apart, resulting in an increase in size. This phenomenon is referred to as thermal expansion.
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