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When 1 mol of ice melts at 0^(@)C and a ...

When 1 mol of ice melts at `0^(@)C` and a constant pressure of 1 atm, 1440 cal of heat are bsorbed by the system. The molar volume of ice and water are 0.0196 and 0.0180 L, respectively. Calculate `Delta H` and `Delta U`.

A

`DeltaH=720` Joule

B

`DeltaH=1440` cal

C

`DeltaH=1.4` Kcal

D

`DeltaH=0`

Text Solution

Verified by Experts

The correct Answer is:
B
`H_(2)O(s) rarr H_(2)O(l) , DeltaH = 1440 "cal"`
`DeltaH~= DeltaU` for solids and liquids
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