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.Management Sciences
Category: Thermodynamics for Chemical
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
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
A solid is transformed into vapour without going to the liquid phase at_________________?
A. Triple point
B. Boiling point
C. Below triple point
D. Always
With increase in compression ratio, the efficiency of the otto engine________________?
A. Increases
B. Decreases
C. Remain constant
D. Increases linearly
Critical temperature is defined as the temperature above which a gas will____________________?
A. Not liquify (barring exceptions)
B. Immediately liquify
C. Never liquify however high the pressure may be
D. None of these
The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by_________________?
A. (∂E/∂ni)S, v, nj
B. (∂G/∂ni)T, P, nj = (∂A/∂ni) T, v, nj
C. (∂H/∂ni)S, P, nj
D. All (A), B. and (C)
Fugacity co-efficient of a substance is the ratio of its fugacity to__________________?
A. Mole fraction
B. Activity
C. Pressure
D. Activity co-efficient
Which of the following will increase the volume of a real gas by four times ?
A. Doubling the absolute temperature as well as pressure of the gas
B. Reducing pressure to one fourth at constant temperature
C. Reducing temperature to one fourth at constant pressure
D. Reducing the temperature to half and doubling the pressure
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