1.

The heating curve of a particular substance in solid state is a shown in the figure .choose the correct alternative The amount of heat energy absorbed by the substacne to change completely from liquid at its boiling point to gaseous state is _______J

Answer»

46185
2270
4538
4958

Solution :The substacne in LIQUID state CHANGE to gaseous state by absorbing energy of 2690 -420=2270 J


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