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When the temperature of a confined sample of gas is reduced, the pressure is reduced. Just before you cover the bottle, the steam in it has the same pressure as the air outside the bottle. (If the steam momentarily had higher pressure, some of it ran out. If the steam momentarily had lower pressure, some air ran into the bottle.) After you cover the bottle, nothing can get in or out of it. Then you cool the steam. The pressure inside drops when the steam cools. Now the pressure of the air outside the bottle is higher than the pressure inside the bottle, and the higher pressure outside crushes the bottle. ================================================ Do you REALLY want to see something cool, and shock the other people in the house ? Take the same plastic bottle, boil some water, pour some of the boiling water into the plastic bottle, and when the bottle is full of steam, cover it up tight. Watch the water in the bottle. As soon as it STOPS boiling, shove the bottle into a dish of ice. The water inside will START boiling again ! From the explanation above, you should be able to explain this. Here's a hint: Water boils at a lower temperature when there's less pressure on top of it. Boiling water in Denver is not as hot as boiling water in Brawley, California, because Denver is at higher altitude. so the air pressure there is lower.

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Does hot water in a plastic bottle causes it to expand?

Not necessarily. You have to have a space of air in the bottle. The expansion/contraction happens because the water is heating/cooling the air. Liquids are usually considered incompressible and hence will not change their volume when heated or cooled (unless it evaporates or melts!). Assuming that you have an air space: If you have cold water in a sealed bottle that you heat up, it will expand. If you put hot water in a bottle and seal it, it will contract as it cools. If the bottle is not sealed, there will be no volume change.


An unopened bottle of water is taken out of the refrigerator and placed on a table After a while the bottle is covered with droplets of water What phase change has occurred?

Condensation has occurred, as the water vapor in the air has cooled down upon touching the cold surface of the water bottle, leading to the water vapor turning back into liquid water and forming droplets on the bottle.


What happened with the balLoon when you placed the bottle in hot water?

When the bottle is placed in hot water, the air inside expands due to the increased temperature. This causes the balloon to inflate as the air pressure inside the bottle increases.


What household iteam can you make neutrally buoyant?

You can make a plastic bottle neutrally buoyant by adding just enough weight (like sand or rocks) to offset its natural buoyancy. This can be done by experimenting with different amounts of weight until the bottle neither sinks nor floats when placed in water.


Why will an empty water bottle collapse in a freezer?

When an empty water bottle is placed in a freezer, the air inside the bottle cools down and contracts, creating a lower pressure in the bottle compared to the external pressure. This pressure difference causes the bottle to collapse as the external pressure compresses the bottle inward.

Related Questions

Why water bottles placed inside a refrigerator breaks?

Water expends when it freezes. This expansion may break the bottle.


How to put apples in storage?

Apples should be stores in a plastic bag and placed in the coldest part of the refrigerator or in a cool place.


Why does a closed empty 2l plastic drink bottle cave in when placed in the freezer?

because of the density and cold air


What happens to the plastic bottle with water when placed inside the freezer overnight. does this activity simulate what happens in rocks?

xxcxcxc


Why a plastic bottle get crushed if it is first heated by putting in hot water keeping its cap open then immediately placed inside a refrigerator by closing its cap?

When the bottle is put in the hot water the air inside it heats up and expands (the atoms become more energised and move farther away from each other). When the lid is put on and it is put in the fridge, the air contracts; the pressure inside the bottle becomes lower than the air pressure outside the bottle and it gets crushed.


Where is a refrigerant label placed?

on a refrigerator......


A plastic bottle puffs up if it is placed inside hot water keeping its cap closed?

Heating the air inside causes the bottle to expand-the presure inside is enought o force the walls out,


Does hot water in a plastic bottle causes it to expand?

Not necessarily. You have to have a space of air in the bottle. The expansion/contraction happens because the water is heating/cooling the air. Liquids are usually considered incompressible and hence will not change their volume when heated or cooled (unless it evaporates or melts!). Assuming that you have an air space: If you have cold water in a sealed bottle that you heat up, it will expand. If you put hot water in a bottle and seal it, it will contract as it cools. If the bottle is not sealed, there will be no volume change.


Why does an egg sink into a glass bottle but not a plastic bottle?

It floats because the water is heaver then the bottle. The bottle is light so it floats. No,It floats because the particles are free to move inside but with water in it there is not enough space for the particles to move so it floats.


How do they manufacture a shampoo bottle?

Shampoo bottles are typically manufactured using a process called blow molding. First, plastic pellets are heated until they melt and are then formed into a parison, a hollow tube of plastic. This parison is placed in a mold, and air is blown into it, causing the plastic to expand and take the shape of the mold. Once cooled, the bottle is trimmed, labeled, and packaged for distribution.


An unopened bottle of water is taken out of the refrigerator and placed on a table After a while the bottle is covered with droplets of water What phase change has occurred?

Condensation has occurred, as the water vapor in the air has cooled down upon touching the cold surface of the water bottle, leading to the water vapor turning back into liquid water and forming droplets on the bottle.


What will happen to a plant when it is placed inside a refrigerator?

it will get cold.