1.

The heats evolved and absorbed when 100 g each of CuSO_(4)andCuSO_(4)*5H_(2)O are dissolved in water are 41.7 and 4.7 kJ/mole respectively. The heat of hydration of CuSo_(4) is (in kJ/mole)

Answer»

`-66.59`
`+11.72`
`-78.2`
`+78.2`

ANSWER :C


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