When you set a pot of tap water on the stove to boil, you'll often see bubbles start to form well before boiling temperature is reached. Explain this observation.
The reason of bubble formation when boiling point is about to reach.
Answer to Problem 17TE
The bubbles start to form in water well before the boiling point is reached. It is because of the dissolved gases come out of the solution as an effect of the increased temperature.
Explanation of Solution
The ability of solute due to which it dissolves in the solvent is known as the solubility. The tap water contains some gases dissolved in it.
The solubility of the gases decreases as the temperature increases. So, when tap water is heated, the temperature increases, and the gases dissolved in it become less soluble.
As the gases become less soluble, they try to come out of the solution. As a result, bubbles are formed before the boiling point of water is reached.
Conclusion:
Therefore, the bubbles start to form in water well before the boiling point is reached. It is because of the dissolved gases come out of the solution as an effect of the increased temperature.
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