As per your request here are the questions
As per your request here are the questions.
1. Calculate the heat of dissolution (q) of urea using the following formula.
q = -s m ?
where s is the heat capacity (assume the heat capacity is equivalent to the heat capacity of water: 4.184 J g-1 ºC-1, m is the mass of the solution, and ?T is the change in temperature.
2. Calculate the molar enthalpy change, equivalent to the heat of dissolution over n, where n is the number of moles of urea.
?H = q/
1. Calculate the equilibrium constant Keq by dividing number of moles of urea in the system by total volume of water added to the beaker in L.
Calculation of ?G and ?S
1. Calculate the free energy change of the dissolution reaction using the following formula:
?G = -RT lnKub
where R is the gas constant (8.31451 J K-1 mol-1) and T is the temperature in Kelvin.
2. Using the values of ??, ?G, and the temperature of the saturated solution, calculate ?S using the equation for Gibb?s Free Energy.
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