explain the change in the state of matter (solid to gaseous state)by taking the help of kinetic model of matter
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Answer:
Explanation:
Snow, sea, cloud—it's not often you see what look like the three main states of matter (solid, liquid, and gas) in the same place, at the same time. But I got lucky one chilly day earlier this year walking on the beach just after a snowstorm. The clouds (aerosols, slowly forming from invisible water vapor) were still heavy with rain waiting to fall, there was a dusting of snow (solid water) on the beach, and the ocean (liquid water) was licking in and out, in and out. There, right in front of my eyes, was water in its three states, all together at once. Now you can see three states of different substances any time you like. Open the door of your refrigerator and you'll see all kinds of liquids chilling in jars, solid lumps of vegetables and cheese, and the whole chiller cabinet bursting with invisible gases—oxygen, nitrogen, carbon dioxide, and the various other, lesser-known ones such as argon that make up the air around us. But it's not often you see three states of the same substance all together at once. Ever wondered why? Let's take a closer look!
Photo: Water in its three states? Snow (solid water) on the beach, liquid water in the ocean, and water vapor (water cooling from gaseous form into water droplets and ice crystals, slowly forming into visible clouds). What's the difference between water vapor and steam? Steam is water in the form of a hot gas made by boiling water, whereas water vapor is water in a gas form at any temperature—it could be cold water vapor made from liquid water by lowering the pressure. Although clouds might look like simple white gases, they're actually examples of aerosols (liquids or solids dispersed in gases—so either water drops or ice crystals smeared out through a big mass of air).
What makes something solid, liquid, or gas?
What's the difference between a solid, a liquid, and a gas? You might think it's just a matter of temperature, but there's more to it than that.
In solids, atoms are bonded fairly firmly together, though they do move about a bit. You don't need to put a solid in a container; it stays where it is because its atoms are locked tightly into a definite shape that, ordinarily, doesn't change. If a solid is reasonably soft and you press it, you can make it change shape by pushing its atoms into new positions.
Heat a solid enough and you'll give its atoms enough energy to break apart, forming a liquid. In liquids, the atoms are more randomly arranged and a little bit further apart (but not all that much). The forces between them are weaker and they can jiggle about and flow past one another quite easily. That's why liquids pour. Take enough heat away from a liquid and the atoms will slow down until they form a solid. Add some more heat and some of the atoms can escape from it to form a gas.
Gases have much more randomly arranged atoms than either liquids or solids. The forces between the atoms are very weak, so the atoms can speed around freely with lots of energy. A liquid can flow, but a gas goes one better and expands to fill all the space available to it. If you squeeze a gas really hard or take heat away from it, its molecules have to huddle together. Pretty soon they're bonding to form a liquid. Keep squeezing or cooling and you'll lock them together tightly to make a solid