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Four engine are working between Which ...

Four engine are working between
Which one has maximum efficiency?

A

100 K, 80 K

B

40 K, 20 K

C

60 K, 40 K

D

120 K, 100 K.

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MBD-THERMODYNAMICS-EXERCISE
  1. Four engine are working between Which one has maximum efficiency?

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  2. An ideal gas with pressure P, volume V and temperature T is expanded i...

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  3. A litre of hydrogen at 27^@C and 10^5 Nm^-2 pressure expand isothermal...

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  4. A volume of gas at atmospheric pressure is compressed adiabatically to...

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  5. The efficiency of an ideal engine is 1/8. By lowering the temperature ...

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  6. What thermodynamical variable is defined by Zeroth law

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  7. Is it possible to convert internal energy into work?

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  8. An ideal gas is compressed at a contant temperature. Will its internal...

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  9. Does the internal energy of an ideal gas change in an isothermal proce...

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  10. How is the efficiency of a Carnot engine affected by the nature of the...

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  11. If the door of a refrigerator is kept open, the room in which the refr...

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  12. Why first law of thermodynamics does not forbid flow of heat from lowe...

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  13. What do you mean by "internal energy"?

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  14. Fill in the Blanks: Air escaping from a cycle-tube becomes .

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  15. Can two isothermal curves intersect each other? Why?

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  16. What do you mean by reversible and irreversible process? Give example.

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  17. Write two characterstics of a reversible process.

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  18. State first law of thermodynamics.

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  19. Show that PV^(gamma) = constant for adiabatic process.

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