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The standard enthalpies of n-pentane, is...

The standard enthalpies of n-pentane, isopentane and neopentane are `-35.0, -37.0` and `-40.0` K.cal/mole respectively. The most stable isomer of pentane of pentane in termsof energy is

A

n-pentane

B

Iso pentane

C

neo pentane

D

n-pentane and iso pentane both

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The correct Answer is:
C
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NARAYNA-THERMODYNAMICS-C.U.Q
  1. If a gas, at constant temperature and pressure expands, then its

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  2. Heat exchanged in a chemical reaction at constant temperature and pres...

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  3. The standard enthalpies of n-pentane, isopentane and neopentane are -3...

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  4. The internal energy change when a system goes fromk state A to B is 40...

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  5. Assume each reaction is carried out in an open container. For which ...

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  6. The heat change associated with reactions at constant volume is due to...

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  7. Regarding a thermochemical equation a wrong statement is

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  8. The enthalpies of the elements in their standard states are arbitraril...

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  9. The standard enthalpy is zero for the substance

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  10. Heat of a reaction (Q) at constant pressure is equal to

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  11. Energy hidden in a definite quantity of substance

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  12. Mathematical representation of 1 st law

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  13. I st law can explain

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  14. According to 1 st law of Thermodynamics

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  15. The limitation of 1st law of thermodynamics is

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  16. Acoording to 1 st law of Thermodynamics

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  17. In a closed insulated container, a liquid is stirred with a paddle to ...

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  18. Which is an extensive property of the system?

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  19. In which of the following sets, all properties belong to same category...

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  20. Which one of the following pairs represents the intensive properties?

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