What is the boiling point of water?
A. 100°C
B. 200°C
C. 300°C
D. 400°C
Explanation:
The boiling point of water is the temperature at which water changes its state from liquid to vapor. This temperature is influenced by atmospheric pressure, but at standard atmospheric pressure (sea level), water boils at a temperature of 100°C or 212°F.
Option B, 200°C, is too low for the boiling point of water. Option C, 300°C, and Option D, 400°C, are even further away from the correct answer and are significantly higher than the boiling point of water.
Factors that affect the boiling point of water:
– Atmospheric pressure: Lower pressure reduces the boiling point, while higher pressure increases the boiling point
– Salinity: The boiling point of saltwater is higher than that of freshwater
– Altitude: The boiling point decreases as altitude increases because the atmospheric pressure decreases
Applications of the boiling point of water:
– Cooking and food preparation
– Distillation and purification of liquids
– Steam generation for energy production and mechanical work
Conclusion:
The boiling point of water is 100°C or 212°F at standard atmospheric pressure. Factors such as atmospheric pressure, salinity, and altitude can affect the boiling point of water. The boiling point of water has various real-world applications, such as cooking, distillation, and steam generation.
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