A. 1
B. 2
C. 3
D. 4
Related Mcqs:
- 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 - Number of phases in a colloidal system is_____________________?
A. 1
B. 2
C. 3
D. 4 - For a thermodynamic system containing ‘x’ chemical species, the maximum number of phases that can co-exist at equilibrium is_________________?
A. x
B. x + 1
C. x + 2
D. x + 3 - 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 - Number of degrees of freedom for a three phase system in equilibrium comprising of three non-reacting chemical species is__________________?
A. 2
B. 0
C. 1
D. 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 - The minimum number of phases that can exist in a system is________________?
A. 0
B. 1
C. 2
D. 3 - 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 - Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream ?
A. Sedimentation tank
B. Circular clarifier
C. Mechanical flocculation
D. Chemical coagulation - Chemical engineering thermodynamics is concerned with the ____________ in/of chemical processes?
A. Reaction mechanism
B. Calculation of rates
C. Energy transformation from one form to another
D. None of these
