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1.why a solid expands when it is heated?

2.explain how the liquid in a thermometer changes so that it can be used to measure a temperature.

3.use particle theory to explain why solid and liquids cannot be compressed ( squashed into a smaller volume )

4. use particle theory to explain why liquids and gases can flow

Answer :

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Answer:

QN 1

Explanation:

WHEN A SOLID IS HEATED ITS ATOMS VIBRATE FASTER ABOUT THEIR FIXED POINTS. HEAT CAUSES THE MOLECULES TO MOVE FASTER HEAT ENERGY IS CONVERTED TO KINETIC ENERGY WHICH MEANS THAT THE VOLUME OF GAS INCREASES MORE THAN THE VOLUME OF A SOLID OR LIQUID.

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