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For free expansion of the gas, which of ...

For free expansion of the gas, which of the following is true?

A

`Q=W=0` and `DeltaE_("int")=0`

B

`Q=0` and `W gt 0` and `DeltaE_("int")=-W`

C

`W = 0,Q gt 0` and `DeltaE_("int")=Q`

D

`W gt 0`,`Q lt 0` and `DeltaE_("int")=0`

Text Solution

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The correct Answer is:
A
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CP SINGH-LAWS OF THERMODYNAMICS-EXERCISE
  1. Which of the following is not a thermodynamical function

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  2. If Q, E and W denote respectively the heat added, change in internal e...

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  3. For free expansion of the gas, which of the following is true?

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  4. A system is given 300 calories of heat and it does 600 joules of work....

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  5. In thermodynamic process, pressure of a fixed mass of a gas is changes...

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  6. A perfect gas goes from a state A to another state B by absorbing 8 × ...

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  7. An ideal gas goes from the state i to the state f as shown in the figu...

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  8. A thermodynamic system is taken through the cycle ABCD as shown in the...

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  9. A system is taken through a cyclic process represented by a circle as ...

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  10. A thermodynamic process is shown in Fig. The pressures and volumes cor...

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  11. When a system is taken from state f along path iaf, Q = 50 J and W = 2...

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  12. A thermodynamic system undergoes cyclic process ABCDA as shown in figu...

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  13. An ideal gas is taken through the cycle AtoBtoCtoA, as shown in the fi...

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  14. Consider the cyclic process ABCA, shown in figure, performed on a samp...

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  15. The following are the P-V diagrams for cyclic processes for a gas. In ...

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  16. In the cyclic process shown in the V-P diagram the magnitude of the wo...

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  17. In the previous question (i) work is done by the gas (ii) work is ...

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  18. Two different masses m and 3 m of an ideal gas are heated separately i...

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  19. A pressure P, absolute temperature T, graph was obtained whe a given m...

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  20. A volume V absolute temperature T diagram was obtained when a given ma...

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