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For an exothermic reaction, DeltaH is po...

For an exothermic reaction, `DeltaH` is positive.

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Knowledge Check

  • Assertion : DeltaH for an exothermic reaction is negative nad for an endothermic reaction is positive. Reason : Enthalpy is an extensive property.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.
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    Why is respiration considered an exothermic reaction? Explain.

    A : For exothermic reaction, DeltaH=E_a (forward) -E_a (backward) R : The value of activation energy for forward direction is less than activation energy for backward reaction.

    Which of the following is true during adsorption? a. DeltaG , DeltaH , and DeltaS all are negative. b. DeltaG is negative, but DeltaH and DeltaS is positive. c. DeltaG and DeltaH are negative, but DeltaS is positive. d. DeltaG and DeltaS are negative, but DeltaH is positive.