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Question

Heat required to convert one gram of ice at 0o C into steam at 100o C is (given Lsteam = 536 cal/gm)


A

100 calorie

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B

0.01 kilocalorie

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C

716 calorie

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D

1 kilocalorie

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Solution

The correct option is C

716 calorie


Conversion of ice (0o C) into steam (100o C) is as follows


Heat required in the given process
=Q1+Q2+Q3
=1×80+1×1×(1000)+1×536=716 cal


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