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AC: reverses direction :: DC : ....

AC: reverses direction :: DC : __________.

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One direction
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Knowledge Check

  • Reverse peristalsis refers to __________.

    A
    swallowing
    B
    Egestion
    C
    Vomiting
    D
    Coughing

  • The d.c.s. of a vector whose direction ratios are 2, 3, -6 are …............. .

    A
    `((2)/(7), (3)/(7), (6)/(7))`
    B
    `((2)/(49), (3)/(49), (-6)/(49))`
    C
    `((sqrt2)/(7), (sqrt3)/(7), (-sqrt6)/(7))`
    D
    `((2)/(7), (3)/(7), (6)/(7))`

  • In a reversible reaction, the enthalpy change and the activation energy in the forward direction are respectively -xkJmol and y kJ mol ^(-1) . Therefore , the energy of activation in the backward direction is ........

    A
    `(y-x) "kJ mol"^(-1)`
    B
    `(x+y)J mol^(-1)`
    C
    `(x-y)kJ mol^(-1)`
    D
    `(x+y)xx10^3J mol^(-1)`

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    In a reversible reaction, the enthalpy change and the activation energy in the forward direction are respectively -"x kJ mol"^(-1) and "y kJ mol"^(-1) . Therefore, the energy of activation in the backward direction is

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