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

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. Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance at constant temperature and pressure is________________?

   A. 0 B. 1 C. ∞ D. None of these...

4. 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...

5. 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...

6. 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...

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

   A. Pressure B. Temperature C. Composition D. All A, B. and C...

8. The chemical potential for a pure substance is ____________ its partial molal free energy?

   A. More than B. Less than C. Equal to D. Not related to...

9. At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is____________________?

   A. Zero B. One C. Infinity D. Negative...

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

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