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Questions  >>  JEEMAIN and NEET  >>  Physics  >>  Class11  >>  Thermodynamics
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At 1 atmospheric pressure, 1 gm of water having a volume of $1\: cm^3$ becomes $1.091\: cm^3$ of ice on freezing. The heat of fusion of water at 1 atmosphere is 80 cal/g. What is the change in internal energy during the process?

$\begin {array} {1 1} (A)\;80.0022 \: cal & \quad (B)\;79.9978 \: cal \\ (C)\;-80.0022 \: cal & \quad (D)\;-79.9978 \: cal \end {array}$

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