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Which has/have a positive value of Delta...

Which has/have a positive value of `DeltaH`?

A

`H_(2(g)) rarr 2H_((g))`

B

`H_((g)) rarr H_((g))^(+) + e`

C

`H_(2)O_((l)) rarr H_(2)O_((g))`

D

`H_((aq))^(+) + OH_((aq))^(-) rarr H_(2)O`

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The correct Answer is:
A, B, C
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AAKASH SERIES-CHEMICAL THERMODYNAMICS-Practice Sheet-Exercise-I
  1. Which of the following statements is false?

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  2. On which of the following factors does internal energy depend upon

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  3. The enthalpy is maximum for

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  4. The different between DeltaH and DeltaE for the reaction BaCl(2(aq)) ...

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  5. For the gaseous reaction involving the complete combustion of isobutan...

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  6. During a process work equivalent to 400J is done on a system, which gi...

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  7. A system absorbs 10kJ of heat at constant volume and its temperature r...

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  8. Which of the following come under the view of thermodynamics?

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  9. During expansion of a gas into vaccum (P("ext")=0), Work done is zero ...

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  10. In the isothermal expansion of an ideal gas

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  11. Which has/have a positive value of DeltaH?

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  12. The following is/are extensive property/properties

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  13. If the boundary of system moves by an infinitesimal amount, the work i...

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  14. If the boundary of system moves by an infinitiesimal amount, the work ...

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  15. One mole of an ideal gas for which C(V)= 3//2R heated at a constant pr...

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  16. One mole of an ideal gas for which C(V)= 3//2R heated at a constant pr...

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  17. Match the following columns

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  18. 4.48 L of an ideal gas at STP requires 12 cal to raise the temperature...

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  19. Calculate the maximum work done (in multiple of 10^(3)) in expanding 1...

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  20. Calculate the work done by the system in an irreversible (sing step) a...

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