An ideal gas as compared to a real gas at very high pressure occupies_________________?

Related Mcqs:

1. 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

2. The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will______________?

   A. increase
   B. decrease
   C. remain unchanged
   D. increase/decrease depending on ap-plication
   E. unpredictable

3. The ideal efficiency of a Brayton cycle without regeneration with increase ni pressure ratio will_________________?

   A. increase
   B. decrease
   C. remain unchanged
   D. increase/decrease depending on application
   E. unpredictable

4. Universal gas constant is defined as equal to product of the molecular weight of the gas and_______________?

   A. specific heat at constant pressure
   B. specific heat at constant volume
   C. ratio of two specific heats
   D. gas constant
   E. unity.

5. Characteristic gas constant of a gas is equal to______________________?

   A. C/Cv
   B. Cv/Cp
   C. Cp – Cv
   D. Cp + Cv
   E. Cp x Cv

6. Which of the following can be regarded as gas so that gas laws could be applicable, within the commonly encountered temperature limits ?

   A. 02, N2, steam, C02
   B. Oz, N2, water vapour
   C. S02, NH3, C02, moisture
   D. 02, N2, H2, air
   E. steam vapours, H2, C02

7. A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is________________?

   A. 54°C
   B. 327°C
   C. 108°C
   D. 654°C
   E. 600°C

8. Addition of heat at constant pressure to a gas results in________________?

   A. raising its temperature
   B. raising its pressure
   C. raising its volume
   D. raising its temperature and doing external work
   E. doing external work

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. The pressure’of a gas in terms of its mean kinetic energy per unit volume E is equal to________________?

    A. E/3
    B. E/2
    C. 3E/4
    D. 2E/3
    E. 5E/4