The reaction rate at a given temperature becomes slower,then

  • A
    The free energy of activation is higher
  • B
    The free energy of activation is lower
  • C
    The entropy changes
  • D
    The initial concentration of the reactants remains constant

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Oxygen is available in plenty in air,yet fuels do not burn by themselves at room temperature. Explain.

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Choose the incorrect statement -

For a first-order gaseous reaction,a plot of $\log \, k$ versus $1/T$ gives a straight line with a slope of $-8000$. Calculate the activation energy $(E_a)$ of the reaction in $cal$.

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