A block of ice at 
is slowly heated and converted to steam at 
. Which of the following curves represents the phenomenon qualitatively?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Initially on heating temperature rises from 
to 
. Then, ice melts and temperature does not rise. After the whole ice has melted, temperature begins to rise until it reaches 
. Then, it becomes constant, as at the boiling point will not rise.
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