The standard Gibbs free energy change of a reaction depends on the equilibrium______________________?

Related Mcqs:

1. Gibbs free energy (G) is represented by, G = H – TS, whereas Helmholtz free energy, A. is given by, A = E – TS. Which of the following is the Gibbs-Helmholtz equation ?

   A. [∂(G/T)/∂T] = – (H/T2) B. [∂(A/T)/∂T]V = – E/T2 C. Both A. and B. D. Neither A. nor B....

2. The change in Gibbs free energy for vaporisation of a pure substance is___________________?

   A. Positive B. Negative C. Zero D. May be positive or negative...

3. Specific/molar Gibbs free energy for a pure substance does not change during________________?

   A. Sublimation B. Vaporisation C. Melting D. Either A, B. or C....

4. The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x1. x2, where A is a constant. The corresponding equation for ln y1, where y1 is the activity co-efficient of component 1, is__________________?

   A. A . x22 B. Ax1 C. Ax2 D. Ax12...

5. Gibbs free energy of mixing at constant pressure and temperature is always__________________?

   A. 0 B. ∞ C. + ve D. – ve...

6. Gibbs free energy (F) is defined as__________________?

   A. F = E – TS B. F = H – TS C. F = H + TS D. F = E + TS...

7. Gibbs free energy per mole for a pure substance is equal to the__________________?

   A. Latent heat of vaporisation B. Chemical potential C. Molal boiling point D. Heat capacity...

8. Gibbs free energy at constant pressure and temperature under equilibrium conditions is___________________?

   A. ∞ B. 0 C. Maximum D. Minimum...

9. Gibbs free energy of a pure fluid approaches _____________ as the pressure tends to zero at constant temperature?

   A. Infinity B. Minus infinity C. Zero D. None of these...

10. The free energy change for a chemical reaction is given by (where, K = equilibrium constant)________________?

    A. RT ln K B. -RT ln K C. -R ln K D. T ln K...