During a reversible isothermal expansion of an ideal gas, the entropy change is___________________?
A. +ve
B. 0
C. -ve
D. ∞
Thermodynamics for Chemical
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 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
As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches____________________?
As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches____________________?
A. Zero
B. Unity
C. Infinity
D. An indeterminate value
If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the____________________?
If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the____________________?
A. Process must be isobaric
B. Temperature must decrease
C. Process must be adiabatic
D. Both B. and C.
The first law of thermodynamics is a statement of conservation of_____________________?
The first law of thermodynamics is a statement of conservation of_____________________?
A. Heat
B. Momentum
C. Energy
D. Work
First law of thermodynamics deals with the ___________________?
First law of thermodynamics deals with the ___________________?
A. Direction of energy transfer
B. Reversible processes only
C. Irreversible processes only
D. None of these
The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is__________________?
The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is__________________?
A. Less
B. More
C. Same
D. Dependent on climatic conditions
For a spontaneous process, free energy__________________?
For a spontaneous process, free energy__________________?
A. Is zero
B. Increases
C. Decreases whereas the entropy increases
D. And entropy both decrease
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?
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
The chemical potential of any constituent of an ideal solution depends on the ______________ of the solution?
The chemical potential of any constituent of an ideal solution depends on the ______________ of the solution?
A. Temperature
B. Pressure
C. Composition
D. All (A), B. and (C)