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_______________?

Related Mcqs:

1. Work done in a free expansion process is___________________?

   A. + ve
   B. -ve
   C. zero
   D. maximum
   E. minimum

2. A gas is compressed in a cylinder by a movable piston to a volume one-half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be___________________?

   A. 300 Nm
   B. 300,000 Nm
   C. 30 Nm
   D. 3000 Nm
   E. 30,000 Nm

3. Work done in an adiabatic process between a given pair of end states depends on__________________?

   A. the end states only
   B. particular adiabatic process
   C. the value of index n
   D. the value of heattransferred
   E. mass of the system

4. 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

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. For reversible adiabatic process, change in entropy is_________________?

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

7. 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

8. Work done is zero for the following process_________________?

   A. constant volume
   B. free expansion
   C. throttling
   D. all Of the above
   E. none of the above

9. If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to__________________?

   A. + v
   B. – ve
   C. zero
   D. pressure x volume
   E. any where between zero and infinity

10. 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