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Melting Point Calculation:
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The melting point of pure water at standard atmospheric pressure is 0°C (32°F). This is the temperature at which ice changes to liquid water.
The calculator uses the standard value:
Where:
Explanation: This is a fixed physical constant for pure water at standard atmospheric pressure.
Details: Knowing the melting point of water is fundamental in various scientific fields including chemistry, physics, meteorology, and engineering. It serves as a reference point in temperature scales and phase change studies.
Tips: Simply click the Calculate button to see the melting point of pure water. No additional inputs are required as this is a fixed physical constant.
Q1: Does the melting point of water ever change?
A: The melting point of pure water is constant at standard atmospheric pressure. However, impurities or changes in pressure can affect the melting point.
Q2: Why is 0°C important?
A: 0°C is one of the fundamental reference points on the Celsius temperature scale and is used worldwide for scientific and everyday temperature measurements.
Q3: How does pressure affect the melting point?
A: Increased pressure generally lowers the melting point of water, which is why ice skates can melt ice under pressure allowing for smoother gliding.
Q4: Is the melting point the same as the freezing point?
A: Yes, for a given substance under the same conditions, the melting point and freezing point are identical.
Q5: Can salt change the melting point of water?
A: Yes, adding salt to water lowers its melting point, which is why salt is used to melt ice on roads in winter.