Question

exercise question 1
water boils at 100°c at sea level. if the water in this experiment did not boil at 100°c, what could be the reason?

Explanation:

The boiling point of water is affected by atmospheric pressure. At sea level, it's \(100^{\circ}C\). If the experiment wasn't at sea level (higher altitude means lower pressure, lower boiling point; lower altitude like a mine - higher pressure, higher boiling point) or there were impurities (non - volatile solutes raise the boiling point via boiling point elevation, volatile impurities might lower it depending on their vapor pressure contribution), the boiling point would change.

Answer:

The water might not be at sea level (altitude difference affecting atmospheric pressure) or there could be impurities in the water.