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Which of the following is incorrect rega...

Which of the following is incorrect regarding the first law of thermodynamics?

A

It is applicable to any cyclic process

B

It is a restatement of the principle of conservation of energy

C

It introduces the concept of the internal energy

D

It introduced the concept of the entropy

Text Solution

Verified by Experts

The correct Answer is:
D
The first law of the thermodynamics does not introduce the concept of entropy
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ALLEN-GEOMETRICAL OPTICS-EXERCISE - 05 (A)
  1. Which of the following statements is correct for any thermodynamic sys...

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  2. Two thermally insulated vessels (1) and (2) are filled with air at tem...

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  3. Which of the following is incorrect regarding the first law of thermod...

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  4. The temperature-entropy diagram of a reversible engine cycle is given ...

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  5. A system goes from A and B via two processes. I and II as shown in fig...

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  6. Two rigid boxes containing different ideal gases are placed on a table...

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  7. The work done in compressing 1 kg-mol of a gas adiabatically is 146 kJ...

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  8. A Connot engine having an efficiency of (1)/(10) as heat engine, is u...

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  9. When a system is taken from state i to state f along the path iaf, it ...

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  10. Two moles of helium gas are taken over the cycle ABCDA , as shown in t...

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  11. Two moles of helium gas are taken over the cycle ABCDA , as shown in t...

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  12. Two moles of helium gas are taken over the cycle ABCDA , as shown in t...

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  13. A diatomic ideal gas is used in a Car engine as the working substance ...

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  14. A thermally insulted vessel contains an ideal gas of molecular mass M ...

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  15. A Carnot engine operating between temperatures T(1) and T(2) has effic...

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  16. Helium gas goes through a cycle ABCDA (consisting of two isochoric and...

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  17. A Carnot engine, whose efficiency is 40%, takes in heat from a source ...

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  18. The above p-v diagram represents the thermodynamic cycle of an engine,...

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  19. One mole of diatomic ideal gas undergoes a cyclic process ABC as shown...

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  20. Three rods of Copper, Brass and Steel are welded together to from a Y ...

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