Based on the kinetic molecular of theory of matter,
explain why?
1 solid changes to liquid on heating
2 gas changes to liquid
to liquid on cooling.
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Answer:
1.
When a solid is heated, the particles are given more energy and start to vibrate faster. At a certain temperature, the particles vibrate so much that their ordered structure breaks down. At this point the solid melts into liquid
2.
As a gas cools, its particles slow down. When particles move slowly enough for their attractions to bring them together, droplets of liquid form. This process, which is the opposite of vaporization, is called condensation. As a gas condenses to a liquid, it releases the thermal energy it absorbed to become a gas.
Explanation:
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