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BAED-CHEM2122 General Chemistry 2
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Calculate ΔG⁰ for a reaction where ΔH⁰ is equal to 36.2 kJ and ΔS⁰ is equal to 123 J/K at 298 K.
The equilibrium constant for the formation of hydrogen iodide from hydrogen and iodine is at a certain temperature.
H2(g) + I2(s) ⇌ 2 HI(g) K = 45
Which of the following is true regarding this equilibrium?
I. The reaction is product favored.
II. The reaction is reactant favored.
III. Equilibrium lies to the right.
IV. Equilibrium lies to the left.
Which one of the following thermodynamic quantities is not a state function?
A chemical equilibrium may be established by starting a reaction with __________
Twenty grams of ammonium nitrate( NH4NO3 ) is dissolve in 125 grams of water in a coffee cup calorimeter and the temperature drops from 295 oC to 285 o C. Find the value of q for the calorimeter.
(hint: treat heat capacity of water as the heat capacity of calorimeter and its contents)
The equilibrium constant for the reaction is 10. What will be the value of ΔG?
The standard free energy is found to be zero. What is its equilibrium constant?
The increased in internal energy of the system is 80 J and has 70 J of work done on it. What is the heat change of the system?
The standard enthalpy of formation for a simple substance in its most stable state must be non-zero
If ΔG is positive, the reaction is spontaneous in the reverse direction.