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Question
When heat is constantly supplied by a burner to boiling water, then the temperature of water during vaporisation :
Options
rises very slowly
rises rapidly until steam is produced
first rises and then becomes constant
does not rise at all
Solution
Does not rise at all
Temperature of the water during vaporisation does not change at all because the heat is used in overcoming particle-particle attraction forces, which in turn keeps the temperature constant.
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