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Glass expands at different rates. This rate is called a coeficient of expansion (COE). The higher the number the more it expands as its temperature rises. Glasses with low COE's can withstand heat much better than those with high COE's. When you pour hot liquid in a glass container with a high COE (90) quickly it can expand so much, so fast that it breaks. If you do the same thing in a Pyrex container (COE 32.5) it expands less and can take the stress without breaking.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoporcelain is stronger, like rock destroys scissors, scissors cut paper and paper devours rock. Same concept.
Wiki User
∙ 13y agowhen one material is heated it expand:because the glass is not a conductor of heat
Wiki User
∙ 14y agoglass brakes easily because, well it's glass and it isn't very strong so that's why. Glass is hard so it is strong, so glass doesn't brake easily.
Wiki User
∙ 13y agoYes, porcelain can break glass. Glass can break porcelain, too. Both are brittle and can be broken by impact.
Wiki User
∙ 13y agoThe expansion of the glass makes it break (the inside of the glass, which is in contact with the hot water, tries to expand more than the outside; the tension makes the glass break).
Wiki User
∙ 15y agobecause it just is
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Why is hot water poured to a drinking glass more likely to break the glass?
The hot water will increase the temperature of the glass and cause the inside of the gas to expand faster than the outside.This will exert a force on the glass and the glass may crack.
Why hot liquids float above cool liquids?
Hot liquids float above cool liquids because hot liquids weight less than cold liquids.not useful
Why does an empty glass cracks when you pour very hot water into it but does not crack if there is a metal spoon in it?
It will crack because like clay in a hot oven, if all the spots are not covered correctly, it will have a chance of cracking, but when the hot water gets into the crack, it will start to make it bigger. If the expansion is uneven, the glass will break and I don't understand why it won't break with a metal spoon.
What is the use of condenser in science lab?
In a laboratory a condenser is a piece of laboratory glassware used to cool hot vapors or liquids. [1] A condenser usually consists of a large glass tube containing a smaller glass tube running its entire length, within which the hot fluids pass.
Can glass break glass?
Yes.
Which cups glass ceramic plastic metal are best suited for keeping hot liquids hot or cold liquids cold?
metal
Why should you never poor hot liquids into a cold drinking glass?
Because the glass shatters
Can you keep hot dishes on glass tables?
yes it has to be very hot for glass to break or melt
Why should you never pour hot liquids into a drinking glass?
Rapid temperature changes can cause glass to crack. For the same reason you should never wash a hot glass with cold water.
Is it safe to add hot liquids to milk glass?
It is a very delicate variety of glass. I would advise against it.
Why should you never pour hot liquids into a cold drinking glasss?
you can if you put a spoon it the glass first before pouring in the hot liquid, otherwise the glass might crack
Why are microscope slides made of glass?
they are made of glass because it is transparent and nonpermeable so no liquids can pass through it it is hard aswell so it will not break easily
Why does the hot glass of a kerosene lamp cracks when wet with water?
The glass of a kerosene lamp while glowing is hot. When water falls on it, there is a sudden change in temperature, which causes the glass to break.
Why is hot water poured to a drinking glass more likely to break the glass?
The hot water will increase the temperature of the glass and cause the inside of the gas to expand faster than the outside.This will exert a force on the glass and the glass may crack.
Why does hot oil break glass and not hot water?
The boiling point of oil is higher than water and absorbs more heat .When hot oil is poured in a glass container the heat is conducted through the cold glass which expands and breaks while in hot water the heat energy absorbed is less and the glass heat is dissipated slowly to avoid sudden expansion.
Why hot liquids float above cool liquids?
Hot liquids float above cool liquids because hot liquids weight less than cold liquids.not useful
What is the use of the condenser clamp?
Condenser lamp is a laboratory apparatus used to cool hot vapors and liquid. This typically has a large glass tube containing smaller glass tube running the whole length where the hot liquids pass.
