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Class 11 Chemistry Practice Test: Thermodynamics - Gibbs Energy Change and Equilibrium
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Gibbs free energy, denoted G, combines enthalpy and entropy into a single value.

Class 11 Chemistry Practice Test: Thermodynamics - Gibbs Energy Change and Equilibrium
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10 Questions

1. Write 1 Faraday in terms of coulombs.
2. Which of the following is not a type of exergonic reaction?
3. The Gibbs free energy is positive when a change in enthalpy and change in entropy are positive at ____________
4. In the equation, ΔG = – 2.303 RT logK, what is K?
5. In a reaction, the change in entropy is given as 2.4 cal/K and the change in Gibbs free energy is given as 3.4 kcal, calculate the change in heat at the temperature of 20-degree centigrade?
6. Find out whether the following reaction is spontaneous or not at 127 degrees centigrade? N2(g) + 3H2(g) \(\rightleftharpoons\) 2NH3(g); ΔH = 92.22 kJ/mol and ΔS = -198.75 J/K-mol.
7. Calculate the Gibbs free energy for the reaction of conversion of ATP into ADP at 293 Kelvin the change in enthalpy is 19.07 Kcal and the change in entropy is 90 cal per Kelvin.
8. Calculate the Gibbs free energy for the conversion of oxygen to Ozone at room temperature if KP is given as 2.47 x 10-29.
9. What is the relation between Gibbs free energy and the EMF of the cell?
10. The melting of ice into liquid water is an example of tube _______________ reaction.

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