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Calculate the enthalpy of vapourisation ...

Calculate the enthalpy of vapourisation of ethanol, given enthalpies of formation of liquid ethanol and gaseous ethanol as `-277.6J` and -235.4 kJ respectively.

Text Solution

Verified by Experts

`DeltaH_(vap)=H_(p)-H_(r)`
`=-235.4kJ-(-277.6kJ)`
`=42.2kJ`
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