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What are the signs of DeltaH^(@) and Del...

What are the signs of `DeltaH^(@) and DeltaS^(@)` for a reaction that is spontaneous at all temperature?

Text Solution

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`DeltaG = -ve , K = +ve , E_(cell)^(Theta) = +ve`
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Knowledge Check

  • For a reaction to be spontaneous at all temperatures

    A
    `Delta G and Delta H` should be ngative
    B
    `Delta H = Delta G=0`
    C
    `Delta G and Delta H` should be positive
    D
    `Delta H lt Delta G`
  • The a reaction to be spontaneous at all temperature

    A
    `DeltaG` and `DeltaH` should be negative
    B
    `DeltaG` for the reaction is zero
    C
    `DeltaG` and `DeltaH` should be positive
    D
    `DeltaH lt DeltaG`
  • What are the sign of DeltaH and DeltaS for a reaction that is spontaneous only at low temperatures?

    A
    `DeltaH` is positve, `DeltaS` is positive
    B
    `DeltaH` is positve, `DeltaS` is negative
    C
    `DeltaH` is negative, `DeltaS` is negative
    D
    `DeltaH` is negative, `DeltaS` is positive
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