In order to open air tight glass jam bottle, we dip the lid portion in hot water for some time.State what helps us to open the lid with good explanation plzz....
Solution:
To open an air-tight glass jam bottle, we dip the lid portion in hot water for some time because of the pressure difference between the glass jar and inside the glass jar. This pressure difference expands the gas inside the glass jar as air expands on heating, thus pushing the metal lid to open up in the warm water.
To open an air-tight glass jam bottle, we dip the lid portion in hot water for some time because of the pressure difference between the glass jar and inside the glass jar. This pressure difference expands the gas inside the glass jar as air expands on heating, thus pushing the metal lid to open up in the warm water.