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What causes a plastic bottle when filled with hot water to contract when a lid is placed on the top?
Wiki User
∙ 13y ago
We have to assume that the lid does not allow air to enter the plastic bottle.
When the water is hot, the air above the water is also hot. When the air cools down, its volume decreases significantly. This, in turn, causes the pressure in the bottle to decrease such that atmospheric pressureis greater than the pressure inside the bottle. This causes the bottle to contract since the force exerted on the bottle due to atmospheric pressure is greater than the force exerted on the bottle due to the air pressure inside the bottle. The volume of the bottle decreases until the pressure of the air inside becomes equal to atmospheric pressure.
The changes in volume, pressure and temperature can be explained by the equation pV=nRT,
where
p:pressure of gas
V:Volume occupied by gas
n:number of moles of gas
R:molar gas constant
T:Thermodynamic temperature of the gas
Wiki User
∙ 13y ago
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The picture shows a Cartesian diver made from a plastic bottle filled with water and an inverted test tube partially filled with water. What causes the diver to sink as the bottle is squeezed?
The volume of air in the driver decrease.
What happens when you put a filled plastic water bottle in an open fire?
In the first place the water in the bottle would keep the temperature of the plastic down preventing it from burning and leaking, The same as you would do by boiling water over a flame in a paper cup, However the water in the bottle would heat up and eventually the pressure inside the bottle would burst it like a balloon.
A bottle is filled up to its brim with a liquid The bottle is then tightly corked and placed in a freezer As the liquid freezes the bottle cracks The liquid could be?
water
Why do the bottle filled with water do not melt when kept in fire?
Because the temperature of water can't normally go beyond 100 degree Celsius , because that is the temperature of boiling water. When we keep any bottle with water on fire, heat transmits from bottle to water and since the temperature of bottle and water should be almost same, the temperature of bottle does not go far beyond 100 degree Celsius. And since the melting point of the bottle(plastic) are in general above 100 degree Celcius they don't melt.
What happens when you blow over the mouth of a test tube which is half filled with water?
bottle whistle
A Cartesian diver made from a plastic bottle filled with water and an inverted test tube partially filled with water What causes the diver to sink as the bottle is squeezed?
"The volume of air in the diver decreases."
The picture shows a Cartesian diver made from a plastic bottle filled with water and an inverted test tube partially filled with water. What causes the diver to sink as the bottle is squeezed?
The volume of air in the driver decrease.
What happens when you put a filled bottle of water to an open flame?
If the bottle is from glass will burst soon; the plastic container will be melted.
Does plastic have oxygen in it?
no you tool it doesn't. unless of course it is a bottle and it was filled with oxygen? Yes it does...
Why is there a filled plastic bottle inside the flushing cisterns?
to close the water inlet after the cistern is full
Why does an empty plastic bottle floated while the bottle filled with water sank?
Since air is less dense than water, the air pushes the bottle upward. The water filled bottle would sink because the density is greater than water.
How many calories are in a 40 oz water bottle?
It depends on with what you fill the bottle. If the bottle is filled with water, then 0 calories are inside the bottle. As for the bottle itself, I have to recommend not consuming the plastic and getting your calories elsewhere.
Is there a area of ocean tat is filled with plastic bottles?
yes. it's called the bottle-nosed dolphin sea
What do you add to a plastic bottle filled with cola that weighs one liter to it to make it weigh less than two ounces?
Air
What is the past of fill?
Filled. For example, I filled the bottle.
Why would a balloon filled with air in a freezer shrink?
The low temperature inside the freezer causes the air inside the balloon to contract.
Why does a plastic bottle filled completely with water and capped tightly burst open when left in the freezer overnight?
The water expanded when turned into ice. As there was no air space in the bottle, the plastic failed under the pressure.
