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20 g of NaCl is poured into a coffee cup...

20 g of NaCl is poured into a coffee cup calorimeter containing 250 mL of water. If the temperature inside the calorimeter drops `1^@C` by the time, the NaCl is totally dissolved, what is the heat of solution for NaCl and water? (specific heat of water is `4.18 J//g ""^@C`)

A

`-3` kJ/mol

B

`- 1` kJ/mol

C

1 kJ/mol

D

3 kJ/mol

Text Solution

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The correct Answer is:
D
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