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The internal energy of a system remains ...

The internal energy of a system remains constant when it undergoes
a) Cyclic process
b) an Isothermal process
c) Any process in which heat given out by the system is equal to work done on the system

A

both a and b are correct

B

both b and c are correct

C

both a and c are correct

D

a,b.c are true

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-THERMODYNAMICS-EXERCISE - 1A
  1. When a gas is compressed to half of its initial volume. If it is compa...

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  2. A gas may expands adiabatically or Isothermally. If P,V graphs are dra...

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  3. The internal energy of a system remains constant when it undergoes a...

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  4. Consider the following statements: a) Heat given to an ideal gas und...

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  5. Consider the following statements and choose the correct answer. a) ...

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  6. According to second law of thermodynamics a)All heat can be converte...

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  7. Consider the statement (A) and (B) and identify the correct answer. ...

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  8. The second lawof thermodynamics is the generalisation of the fact that...

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  9. Choose the correct statement A: It is impossible to derive continuou...

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  10. The pressure p and volume V of an ideal gas both increase in a process...

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  11. In a process on a system, the initial pressure and volume are equal to...

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  12. Two gases have the same initial pressure, volume and temperature. They...

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  13. The first law of thermodynamics incorporates the concepts of a) Con...

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  14. If C(P) and C(P) denote the specific heat (per unit mass of an ideal g...

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  15. Carnot engine is

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  16. Air pressure in the tyres of a car during motion is

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  17. Which of the following is not possible in a cyclic process ?

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  18. The relation between internal energy U, pressure P and volume V of a g...

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  19. A heat engine has an efficiency eta. Temperatures of source and sink a...

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  20. A system is taken from a given initial state to a given final state al...

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