A. Property of the system
B. Path function
C. Point function
D. State description of a system
Related Mcqs:
- The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible _____________ process?
A. Isobaric
B. Isothermal
C. Adiabatic
D. None of these - A refrigerator may be termed as a____________________?
A. Heat pump
B. Heat engine
C. Carnot engine
D. None of these - Work done in case of free expansion is____________________?
A. Indeterminate
B. Zero
C. Negative
D. None of these - Work done in an adiabatic process between two states depends on the__________________?
A. Rate of heat transmission
B. Initial state only
C. End states only
D. None of these - The work done in isothermal compression compared to that in adiabatic compression will be__________________?
A. Less
B. More
C. Same
D. More or less depending upon the extent of work done - In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?
A. n = y = 1.4
B. n = 0
C. n = 1
D. n = 1.66 - No work is done by the system, when a reaction occurs at constant__________________?
A. Volume
B. Temperature
C. Pressure
D. None of these - The work done in an adiabatic change in a particular gas depends upon changes in the ______________ only?
A. Temperature
B. Specific heat
C. Volume
D. Pressure - 4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is_________________?
A. 4 J
B. ∞
C. 0
D. 8 J - A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system________________?
A. its internal energy (U) decreases and its entropy (S) increases
B. U and S both decreases
C. U decreases but S is constant
D. U is constant but S decreases
