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NaCl dissolves spontaneously in water. ...

NaCl dissolves spontaneously in water.
Based upon the following reaction,
`NaCl(s) rarrNa^(+)(g)+Cl^(-)(g)`
`DeltaH = 786` the heat of hydration for NaCl must be

A

negative with a magnitude less than 786

B

negative with a magnitude greater than 786

C

positive with a magnitude greater than 786

D

nothing can be determined about the heat of hydration without more information

Text Solution

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The correct Answer is:
B
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