Question

in whaich proces substances expand on heating​

Answer 1

Answer:

eg .mercury and copper

Explanation:

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Answer 2

We all know that there are many substances which expand on giving heat to them. As thermal expansion is a tendency of a material to change its state or characteristic due to external temperature. Almost all material expands in this universe. Two examples are water and air since their density decreases and volume increases and hence expansion takes place.

Therefore two examples are:

1. Water

2. Air