When a container's metal lid is stuck, we put it in hot water for a while and then it becomes easier to open it. Why is it so?

Open in App

Solution

Metals expand on heating and on losing heat, they contract. So, when we keep the container in hot water for a while, the metal lid expands and thus makes it easier for us to open the lid.

Suggest Corrections

Similar questions

Q. When a container's metal lid is stuck, we put it in hot water for a while and then it becomes easier to open it. Why is it so?

Q. 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.

Q. On a cold day, it is hard to open the lid of a tight container. But when you gently heat the neck you can easily open the lid. Why?

Take a metallic can half filled with water and put it over the flame so that the water inside starts boiling. Now put the lid on the can and remove it from the flame. What happens to the can when we pour cold water on it?

Q. While drawing water from a well, we find it easy to lift it while it is immersed in water but it becomes hard when the bucket is out of the water surface. Why does this happen?

Join BYJU'S Learning Program