A tightly closed metal lid of a glss bottle can be opened more easily if it is put in hot water for some time. Expoain.

A tightly closed metal lid of a glass bottle can be opened more easily if it is put in hot water for some time. Explain.

A tightly closed metal lid of a glass bottle can be opened more easily if it is put in hot water for some time. Explain.

(A) : A tightly closed metal lid of a glass bottle can be opened more easily if it is put in hot water for some time. ( R) : The coefficient of expansion of metal lid is greater than that of glass.

Explain why a tightly fitted metal cap of a glass bottle can be opened by heating it slightly.

A glass stopper stuck in the neck of a bottle can be removed by pouring hot water on the neck of the bottle. Explain why?

A tightened glass stopper can be taken out easily by pouring hot water around the neck of the bottle as

A tightnened glass stopper can be taken out easily by pouring hot water around the nect of the bottle. Why it is so?

Silver metal does not combine easily with oxygen but silver jewellery tarnishes after some time. How?

Give reason Why does the balloon inflate when the bottle is put in hot water?