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Why does a glass tumbler crack on powering very hot liquid into it?
Wiki User
∙ 12y ago
First you have to understand that everything gets bigger and smaller when its temperature changes. Maybe you remember seeing someone try to put a metal ball through a metal ring. When the ball and the ring are the same temperature, the ball will not go through the ring. If you then heat up the ring, the ball will go through the ring. This is because the ring gets bigger when heated. Thermometers use this same property to measure the temperature outside. You may have seen that some thermometers have either a red or silver line in them that goes up and down as the temperature changes. Other thermometers use what looks like a spring that is attached to a pionter. That "spring" is actually made from two different metals. Since each metal grows or shrinks differently and since they are attached together, the "spring" bends.
Second, and you probably already know this, is that different things can be bend a long ways before they break and other things can bend very little before they break. Most plastic can be bent a long way, or even bent several times, before it breaks. On the otherhand, glass can only bend a little bit before it breaks.
If the glass is thick enough and the liquid is hot enough, when you pour the liquid into the tumbler the glass on the inside becomes hotter than the glass on the outside. The glass on the inside therfore gets bigger than the glass on the outside. This difference in size caused by the difference in temperature causes the glass to bend, not much, but just enough to break.
Hope that helped.Jeff
Wiki User
∙ 12y ago
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What is glass expansion?
A thick Glass tumbler crack when hot water is poured into it,because the inside of the tumbler expands more rapidly than outside and causes strain in the glass As result of this a type of glass known as pyrex is used for making lab beakers and flask to avoid above effects.
Why a thicks walled glass tumbler cracks on pouring boiling water into it?
The boiling water causes the inside surface of the thick glass to expand rapidly. But the outside of the glass expands at a much slower rate, as it takes time for the heat from the inside to reach the outside, and the expansion to equalise. It is this difference in expansion that can cause the glass to break.
Why does a glass tumbler crack when you suddenly pour hot tea into it?
When we pour very hot water into an empty glass, the inner surface of the glass will expand as matter expands when heated. But the inner surface of the glass will expand more than the outer surface of the glass because more heat is applied to the inner surface of the glass.
Why does a glass tumbler break when boiling water directly poured into it?
When heat is applied to something, it tends to expand. When you pour hot water into something made out of glass, only the inside dilates, and the outside doesn't, since its temperature is cooler. If the insides enlarges but the outside doesn't, it cracks. For this reason thick glass is more likely to crack, and thinner glass is less likely. Also, the bottom of the glass could expand, while the top doesn't (if the hot water goes straight to the bottom). In any case, the temperature is higher in one part of the glass and lower in another, so one part expands and another stays the same size.
Is the center of gravity of a glass tumbler closer to its bottom or mouth?
It's slightly closer to the bottom when the tumbler is empty, and moves higher as the tumbler is filled, winding up near the middle when it's completely full.
Why does a glass tumbler containing ice-cool drink show droplets of water on its outer surface?
As the liquid inside the glass tumbler is cold it condenses the water vapour in the atmosphere. This explains why tiny droplets of water are found on the outer surface of the glass tumbler.
Does a glass tumbler containing hot water crack if you cool it by pouring cold water on it?
Yes it does due to the rapid temperature drop on the glass.
Why shouldn't you pour a hot liquid into a cold glass?
The hot liquid could crack a cold glass.
What is glass expansion?
A thick Glass tumbler crack when hot water is poured into it,because the inside of the tumbler expands more rapidly than outside and causes strain in the glass As result of this a type of glass known as pyrex is used for making lab beakers and flask to avoid above effects.
Why a thicks walled glass tumbler cracks on pouring boiling water into it?
The boiling water causes the inside surface of the thick glass to expand rapidly. But the outside of the glass expands at a much slower rate, as it takes time for the heat from the inside to reach the outside, and the expansion to equalise. It is this difference in expansion that can cause the glass to break.
What is the name for a stemless glass?
tumbler
Why does a glass tumber containing hot water crack if you cool it by powering cold water on it?
Because you're cooling down, thus shrinking the glass, outside MORE than the inside (in contact with hot water)
Why does a glass tumbler crack when you suddenly pour hot tea into it?
When we pour very hot water into an empty glass, the inner surface of the glass will expand as matter expands when heated. But the inner surface of the glass will expand more than the outer surface of the glass because more heat is applied to the inner surface of the glass.
Why does a glass tumbler break when boiling water directly poured into it?
When heat is applied to something, it tends to expand. When you pour hot water into something made out of glass, only the inside dilates, and the outside doesn't, since its temperature is cooler. If the insides enlarges but the outside doesn't, it cracks. For this reason thick glass is more likely to crack, and thinner glass is less likely. Also, the bottom of the glass could expand, while the top doesn't (if the hot water goes straight to the bottom). In any case, the temperature is higher in one part of the glass and lower in another, so one part expands and another stays the same size.
What is a glass tumbler?
Locks have what are called tumblers. Your ignition key turns the lock within the tumbler assembly. The tumblers fall into the groves on the key allowing it to turn. Insert the wrong key and the tumblers are not aligned properly and the key will not turn.A tumbler is a flat-bottomed glass with no handle, foot, or stem.
Why would a milk bottle probably crack if boiling water were poured into it?
When you pour hot water into a glass bottle, it heats up the glass very quickly. This causes the glass to expand suddenly and the expansion is not uniform over the surface of the glass. The unequal expansion cracks the bottle.This will happen only if the temperature difference is quite high and the glass is weak.It is easier to crack a glass bottle by heating it (like in a dishwasher) and then cooling it immediately by placing it in or under a stream of cold water. Here, the sudden contraction causes the glass to crack.
What is another name for a small whiskey glass?
It's called a shot glass.
