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When an isolated gas expands against vac...

When an isolated gas expands against vacuum, then its
a)Internal energy increases
b) No work is done
c) Internal energy remains same

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:
B
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AAKASH SERIES-THERMODYNAMICS-EXERCISE - 1A
  1. A gas with C(P)//C(V)= goes from an initial state (P(1), V(1), T(1)) t...

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  2. Melting if ice under atmospheric pressure is a) Isothermal process ...

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  3. When an isolated gas expands against vacuum, then its a)Internal ene...

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  4. When a gas is compressed to half of its initial volume. If it is compa...

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

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

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

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

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

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

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

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

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

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

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

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

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

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  18. Carnot engine is

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

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

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