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For a chemical reaction, DeltaG will alw...

For a chemical reaction, `DeltaG` will always be negative if,

A

`DeltaH` and `TDeltaS` both are positive

B

`DeltaH` and `TDeltaS` both are negative

C

`DeltaH` is negative and `TDeltaS` is positive

D

`DeltaH` is positive and `TDeltaS` is negative

Text Solution

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The correct Answer is:
C
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
  1. An endothermic reaction has a positive internal energy change DeltaU. ...

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  2. The reaction A to B , DeltaH=+24 kJ//"mole". For the reaction B to C, ...

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  3. For a chemical reaction, DeltaG will always be negative if,

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  4. In which reaction there will be increase in entropy ?

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  5. A chemical reaction cannot occur at all if its

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  6. Rate of a reaction can be expressed by Arrhenius equation as: k = Ae...

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  7. BaSO(4) is insoluble in water due to its

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  8. Given that Deltah(f)(H)=218 kJ//mol. Express the H-H bond energy in K ...

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  9. Calculate DeltaH^(@) for the reaction Na(2)O(g)+SO(3)(g)toNa(2)SO(4)...

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  10. For the reaction N(2)(g)+3H(2)(g)to2NH(3)(g), which of the following...

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  11. Given that dE=TdS-PdV and H=E+PV, which one of the following relations...

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  12. The activation energies of two reactions are E(1) & E(2) with E(1)gtE(...

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  13. A reaction cannot take place spontaneously at any temperture when

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  14. The heat of atomisation of PH(3)(g) and P(2)H(4)(g) are 954 kJ mol^(-1...

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  15. NH(3)(g)+3Cl(2)toNCl(3)(g)+3HCl(g),DeltaH(1) N(2)(g)+3H(2)(g)to2NH(3...

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  16. If 1 mole of an ideal gas expands isothermally at 37^(@)C from 15 litr...

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  17. The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calo...

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  18. The source of energy in a cellular reaction is

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  19. The work differential, dw, is

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  20. Three moles of an ideal gas expanded spotaneously into vacuum. The wor...

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