A. constant pressure
B. constant temperature
C. constant volume
D. constant entropy
E. N.T.P. condition

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Related Mcqs:

  1. 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...
  2. The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as_________________?
    A. Dual combustion cycle B. Diesel cycle C. Atkinson cycle D. Rankine cycle E. Stirling cycle...
  3. For which of the following substances, the internal energy and enthalpy are the functions of temperature only____________________?
    A. any gas B. saturated steam C. water D. perfect gas E. superheated steam...
  4. According to which law, all perfect gases change in volume by l/273th of their original volume at 0°C for every 1°C change in temperature when pressure remains constant ____________________?
    A. Joule’s law B. Boyle’s law C. Regnault’s law D. Gay-Lussac law E. Charles’ law...
  5. Change in internal energy 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...
  6. If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly_________________?
    A. temperature B. enthalpy C. internal energy D. entropy E. all of the above...
  7. A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is__________________?
    A. justified B. not possible C. may be possible with lot of sophistications D. cost will be very high E. theroretically possible...
  8. Entropy change depends on___________________?
    A. heat transfer B. mass transfer C. change of temperature D. thermodynamic state E. change of pressure and volume...
  9. For reversible adiabatic process, change in entropy is_________________?
    A. maximum B. minimum C. zero D. unpredictable E. negative....
  10. In a Carnot cycle, heat is transferred at_______________________?
    A. constant pressure B. constant volume C. constant temperature D. constant enthaply E. any one of the above...
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