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.Management Sciences
Category: Thermodynamics for Chemical
Which of the following liquid metals has the highest thermal conductivity ?
A. Molten sodium
B. Molten lead
C. Mercury
D. Molten potassium
The necessary and sufficient condition for equilibrium between two phases is_________________?
A. The concentration of each component should be same in the two phases
B. The temperature of each phase should be same
C. The pressure should be same in the two phases
D. The chemical potential of each component should be same in the two phases
Sound waves propagation in air exemplifies an ______________ process?
A. Adiabatic
B. Isothermal
C. Isometric
D. None of these
Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which___________________?
A. A homogeneous solution (say of phenol water) is formed
B. Mutual solubility of the two liquids shows a decreasing trend
C. Two liquids are completely separated into two layers
D. None of these
Equilibrium constant decreases as the temperature___________________?
A. Increases, for an exothermic reaction
B. Decreases, for an exothermic reaction
C. Increases, for an endothermic reaction
D. None of these
Which of the following is not an equation of state ?
A. Bertholet equation
B. Clausius-Clapeyron equation
C. Beattie-Bridgeman equation
D. None of these
For a spontaneous process, free energy__________________?
A. Is zero
B. Increases
C. Decreases whereas the entropy increases
D. And entropy both decrease
A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the _____________ mean of P1 and P2.(where, P1 and P2 are initial and final pressures respectively) ?
A. Logarithmic
B. Arithmetic
C. Geometric
D. Harmonic
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