NEET Physics Temperature & Heat MCQ Question
Consider a flask with water being heated, as described in the NCERT context. Which of the following best describes the process occurring when bubbles of steam reach the surface and boiling is said to occur?
The entire mass of water reaches 100°C, allowing steam bubbles to escape.
The water at the top condenses steam back into liquid, preventing boiling.
The pressure in the flask decreases, causing water to boil at a lower temperature.
Dissolved air in the water forms bubbles, which are mistaken for steam.
Correct Answer
Detailed Explanation
Boiling occurs when the entire mass of water reaches 100°C, allowing steam bubbles to form and rise to the surface, as described in the NCERT context.
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