Answers

2014-04-10T13:10:36+05:30
It is the energy required to convert 1 gram of water to steam  with keeping temperature as constant. 
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It is the heat required to convert 1 gram of water to vapors at a constent temperature
2014-04-10T13:26:08+05:30
Fusion is a change in resluting from heating a given quantity of substance to change it into solid to liquid.

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