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.Management Sciences
Category: Thermodynamics for Chemical
If an ideal solution is formed by mixing two pure liquids in any proportion, then the ___________________ of mixing is zero?
0
A. Enthalpy
B. Volume
C. Both A. & B.
D. Neither A nor B
In case of an _______________ process, the temperature of the system increases?
A. Isothermal compression
B. Isothermal expansion
C. Adiabatic expansion
D. Adiabatic compression
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.
Clausius-Clapeyron equation is applicable to _____________ equilibrium processes?
A. Solid-vapor
B. Solid-liquid
C. Liquid-vapor
D. All A, B. and C
Standard temperature and pressure (S.T.P.) is__________________?
A. 0°C and 750 mm Hg
B. 15°C and 750 mm Hg
C. 0°C and 1 kgf/cm2
D. 15°C and 1 kgf/cm2
Solid and liquid phases of a substance are in equilibrium at the____________________?
A. Critical temperature
B. Melting point
C. Freezing point
D. Both B. and C
For a cyclic process, a fixed ratio between heat and work___________________?
A. Always exists
B. May exist
C. Never exists
D. Is difficult to predict
When a gas in a vessel expands, its internal energy decreases. The process involved is________________?
A. Reversible
B. Irreversible
C. Isothermal
D. Adiabatic
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
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