Can a substance contract on heating ? give an example .???
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The materials which contract on heating are: water (between 0−4 0C and gallium.
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Yes.. water and silver iodide are the examples
Explanation:
The application of heat to an object can contract the object because of the crystal structure and the alignment of molecule in their packing. Hence if a there is a unique packing of the crystal then the object undego such contraction and this effect is termed as negative thermal expansion.
Generally the materials tends to expand on the application of heat since these materials are contracting this effect is termed as negative termal expansion
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