When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution...
When a solid dissolves in water, heat may be evolved or
absorbed. The heat of dissolution
(dissolving) can be determined using a coffee cup
calorimeter.
In the laboratory a general chemistry student finds that when
7.79 g of CsCl(s) are dissolved
in 119.70 g of water, the temperature of the
solution drops from 25.48 to
23.69 °C.
The heat capacity of the calorimeter (sometimes referred to as the
calorimeter constant) was determined in a separate
experiment to be 1.75 J/°C.
Based on the student's observation, calculate the enthalpy of
dissolution of CsCl(s) in kJ/mol.
Assume the specific heat of the solution is equal to the specific
heat of water.
ΔHdissolution = _______kJ/mol
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When a solid dissolves in water, heat may be evolved or
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