Variation of equilibrium pressure with temperature for any two phases of a given substances is given by the ____________ equation?

Related Mcqs:

1. For multi-component multiple phases to be in equilibrium at the same pressure and temperature, the _______________ of each component must be same in all phases?

   A. Chemical potential B. Fugacity C. Both A. and B D. Neither A. nor B...

2. When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is__________________?

   A. More in vapour phase B. More in liquid phase C. Same in both the phases D. Replaced by chemical potential which is more in vapour phase...

3. The equation, (d loge PA/d loge xA) = (d loge PA/d loge xB) applicable to a binary solution of components. A and B in equilibrium with their vapors at constant temperature and pressure is called the _____________ equation?

   A. Van Laar B. Margules C. Gibbs-Duhem D. Gibbs-Duhem-Margules...

4. The equation relating E, P, V and T which is true for all substances under all conditions is given by (∂E/∂V)T = T(∂P/∂T)H – P. This equation is called the ___________________?

   A. Maxwell’s equation B. Thermodynamic equation of state C. Equation of state D. Redlich-Kwong equation of state...

5. Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant ‘K’ is____________________?

   A. 10 atm-1 B. 105 atm-1 C. 10 (dimensionless) D. 105 (dimensionless)...

6. The variation of heat of reaction with temperature at constant pressure is given by the ____________ law?

   A. Kelvin’s B. Antoine’s C. Kirchoff’s D. None of these...

7. The reaction A (l) → R(g) is allowed to reach equilibrium conditions in an autoclave. At equilibrium, there are two phases, one a pure liquid phase of A and the other a vapor phase of A, R and S. Initially A alone is present. The numbers of degrees of freedom are ?

   A. 1 B. 2 C. 3 D. 0...

8. “When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change.” This is called the_______________?

   A. Le-Chatelier principle B. Kopp’s rule C. Law of corresponding state D. Arrhenius hypothesis...

9. Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be___________________?

   A. Same B. Doubled C. Halved D. One fourth of its original value...

10. At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by (where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) ?

    A. μ° + RT ln f B. μ°+ R ln f C. μ° + T ln f D. μ° + R/T ln f...