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Enthalpy

When 1 mole o...

Question

When 1 mole of ice melts at $0^{o} C$ and at constant pressure of 1 atm, 1440 cal of heat is absorbed by the system. The molar volume of ice and water are 0.0196 and 0.0180 litre respectively. Calculate $Δ H$ and $Δ U$ .

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Solution

Given that
$Δ H = 1440$
$Δ E = 1440 + Δ v$
$= 1440 + 1 (0.018 - 0.0196)$
$Δ E = 144 c a l$

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