If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly_________________?

Related Mcqs:

1. For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be___________________?

   A. zero B. minimum D. maximum D. infinity E. there is no such criterion...

2. 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...

3. 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...

4. 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...

5. For reversible adiabatic process, change in entropy is_________________?

   A. maximum B. minimum C. zero D. unpredictable E. negative....

6. Total heat of a substance is also known as __________________?

   A. internal energy B. entropy C. thermal capacity D. enthalpy E. thermal conductance...

7. 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...

8. Which of the following cycles is not a reversible cycle_____________________?

   A. Carnot B. Ericsson C. Stirling D. Joule E. none of the above...

9. In a non-flow reversible process for which p = (- 3V+ 15) x 105N/m2,V changes from 1 m to 2 m3. The work done will be about_______________?

   A. 100 xlOO5 joules B. lxlO5 joules C. 10 xlO5 joules D. 10 xlO5 kilo joules E. 10xl04kiojoules...

10. 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...