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If q is the amount of heat absorbed by t...

If `q` is the amount of heat absorbed by the system and `W` the amount of work done on the system `(+ve)`, the change in the energy of the system is given by:

A

`q=DeltaU+W`

B

`q=DeltaU-W`

C

`DeltaU=q-W`

D

`DeltaU=W+q`

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The correct Answer is:
B, D
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P BAHADUR-THERMODYNAMICS-Exercise
  1. All natural processes proceed spontaneously in a direction which :

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  2. Which of the following is (are) correct an adiabatic process?

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  3. If q is the amount of heat absorbed by the system and W the amount of ...

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  4. Select the correct statements:

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  5. In a reaction, DeltaH and DeltaS both are more than zero. In which of ...

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  6. In which reaction(s), DeltaS in negative?

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  7. For the adiabatic expansion of an ideal gas:

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  8. The internal energy (U) of an ideal gas decreases by the same amount a...

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  9. Which has/have a positive value (s) of DeltaH?

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  10. Which of the following statements is (are) correct?

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  11. The change in enthalpy for an isobaric gaseous reaction (for an ideal ...

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  12. When a solid melts, there is/are:

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  13. In which of the following cases is the reaction spontaneous at all tem...

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  14. Which of the following conditions is (are) favourable for the feasibil...

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  15. In whiich of the following cases, do you consider the increase in entr...

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  16. In which of the following entropy increases?

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  17. During the isothermal expansion of an ideal gas:

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  18. Which of the following are state function?

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  19. Which are the intensive properties?

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  20. Given, 2Fe2O(3(s)) to 4Fe((s)) + 3 O(2(g)), Deltar G1^@ = +1487kJmol^(...

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