Question

Ramya boiled some water and she observed tiny bubbles appearing in the water before boiling. Once boiled, she kept the water in an air tight bottle up to its brim. She allowed it to cool down to the room temperature. If she takes the water out and boils it again, do you think tiny bubbles will reappear? Give reason for your answer.​

Answer 1

Answer:

Bubbles are seen because on heating the water, the air which is already present in it, in dissolved form tends to escape out. Water after boiling if kept in air tight container and then rebelled, there will no bubbles due to the absence of air.