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Ed tried without sucess to open a brand-new jar of jam The lid was sealed tightly After running hot water on the lid it was able to open Explain what happen?
Wiki User
∙ 15y ago
Hi there what hapenned here is that when any thing is heated it expands and its particles get wider apart. The jam jar lid was metal and the body was glass. the cheap grade metal has a lower melting point then the glass so its particles would get wider quicker and at a lower temp . so the meal lid got a fragment larger because of the heat which allowed it to be taken off as less pressure was on it as before there was alot as it was to tight.
Wiki User
∙ 15y ago
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