A. work done is zero
B. heat transfer is zero
C. both A. and B. above
D. work done is zero but heat increases
E. work done is zero but heat decreases
Related Mcqs:
- During throttling process___________________?
A. heat exchange does not take place
B. no work is done by expanding steam
C. there is no change of internal energy of steam
D. all of the above
E. entropy decreases - Which of the following processes is irreversible process___________________?
A. isothermal
B. adiabatic
C. throttling
D. all of the above
E. none of the above - Work done in a free expansion process is___________________?
A. + ve
B. -ve
C. zero
D. maximum
E. minimum - An isolated system is one in which_____________________?
A. mass does not cross boundaries of the system, though energy may do so
B. neither mass nor energy crosses the boundaries of the system
C. both energy and mass cross the boundaries of the system
D. mass crosses the boundary but not the energy
E. thermodynamic reactions do not occur - The basis for measuring thermodynamic property of temperature is given by___________________?
A. zeroth law of thermodynamics
B. first law of thermodynamics
C. second law of thermodynamics
D. third law of thermodynamics
E. Avogadro’s hypothesis - Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant________________?
A. pressure
B. temperature
C. volume
D. internal energy
E. entropy - For same compression ratio and for same heat added_________________?
A. Otto cycle is more efficient than Diesel cycle
B. Diesel cycle is more efficient than Otto cycle
C. efficiency depends on other factors
D. both Otto and Diesel cycles are equally efficient
E. none of the above - Which of the following cycles is not a reversible cycle_____________________?
A. Carnot
B. Ericsson
C. Stirling
D. Joule
E. none of the above - Carnot cycle efficiency depends upon________________?
A. properties of the medium/substance used
B. condition of engine
C. working condition
D. temperature range of operation
E. effectiveness of insulating material around the engine - The statement that molecular weights of all gases occupy the same volume is known as________________?
A. Avogadro’s hypothesis
B. Dalton’s law
C. Gas law
D. Law of thermodynamics
E. Joule’s law
