Physics-
General
Easy

Question

Which curve shows the rise of temperature with the amount of heat supplied, for a piece of ice?

  1. A    
  2. B    
  3. C    
  4. D    

The correct answer is: D


    Initially on heating temperature rises from negative 73 ℃ (200K) to 0degree(273K). Then ice melts and temperature does not rise. After the whole ice has melted, temperature begins to rise until it reaches 100℃ (373K). Then it becomes constant and after that it changes to vapours.

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