The boiling and freezing points of water are exactly ______ degrees apart on the Fahrenheit scale.

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  1. 180
  2. 90
  3. 360
  4. 270

Answer (Detailed Solution Below)

Option 1 : 180
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The Correct Answer is 180.

Key Points 

  • The boiling and freezing points of water are exactly 180 degrees apart on the Fahrenheit scale.
  • The freezing point of water is 32°F on the Fahrenheit scale and the boiling point is 212°F (at standard atmospheric pressure).
  • This puts 180 degrees apart from the boiling and freezing points of water. 
  • Thus, a degree on the scale of Fahrenheit is 1⁄180 of the distance between the freezing point and the boiling point.
  • The freezing and boiling points of water on the Celsius scale are 100 degrees apart.
    • 1°F temperature interval is equal to a 5⁄9 degrees Celsius interval.
    • At -40 ° (i.e. −40 °F = −40 °C), the Fahrenheit and Celsius scales converge.
  • Absolute zero is -273.15 °C(-459.67 °F).

Additional Information

  • Boiling Point: 
    • The boiling point is the temperature at which the vapour pressure of a liquid becomes equal to atmospheric pressure and it converts from liquid to a gaseous state.
    • It is different at different altitudes.
    • The boiling point of water under normal conditions is 100° C.
    • The boiling point usually decreases at high altitudes. So at high altitudes, the boiling point of water is less than 100° C
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