A. – 273 °K
B. vacuum
C. zero pressure
D. centre of earth
E. in space
Related Mcqs:
- Kinetic theory of gases assumes that the collisions between the molecules are________________?
A. perfectly elastic
B. perfectly inelastic
C. partly elastic
D. partly inelastic
E. partly elastic and partly inelastic - Mixture of ice and water form a________________________?
A. closed system
B. open system
C. isolated system
D. heterogeneous system
E. thermodynamic system. - In order that a cycle be reversible, following must be satisfied ________________?
A. free expansion or friction resisted expansion/compression process should not be encountered
B. when heat is being absorbed, temperature of hot source and working sub¬stance should be same
C. when beat is being rejected, temperature of cold source and working sub-stance should be same
D. all of the above
E. none of the above - An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is___________________?
A. feasible
B. impossible
C. possible
D. possible, but with lot of sophistications
E. desirable - The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will______________?
A. increase
B. decrease
C. remain unchanged
D. increase/decrease depending on ap-plication
E. unpredictable - According to Clausis statement of second law of thermodynamics___________________?
A. heat can’t be transferred from low temperature source to high temperature source
B. heat can be transferred for low temperature to high temperature source by using refrigeration cycle.
C. heat can be transferred from low temperature to high temperature source if COP of process is more than unity
D. heat can’t be transferred from low temperature to high temperature source without the aid of external energy
E. all of the above - For reversible adiabatic process, change in entropy is_________________?
A. maximum
B. minimum
C. zero
D. unpredictable
E. negative. - In an isothermal process, the internal energy of gas molecules________________?
A. increases
B. decreases
C. remains constant
D. may increase/decrease depending on the properties of gas
E. shows unpredictable behaviour - Intensive property of a system is one whose value____________________?
A. depends on the mass of the system, like volume
B. does not depend on the mass of the system, like temperature, pressure, etc
C. is not dependent on the path followed but on the state
D. is dependent on the path followed and not on the state
E. remains constant - Which of the following laws is applicable for the behavior of a perfect gas__________________?
A. Boyle’s law
B. Charles’law
C. Gay-Lussac law
D. all of the above
E. Joule’s law
