Mark the correct statement in a reversible reaction.

  • A
    The catalyst catalyses the forward reaction.
  • B
    The catalyst catalyses the backward reaction.
  • C
    The catalyst influences the direct and the reverse reaction to the same extent.
  • D
    The catalyst increases the rate of forward reaction and decreases the rate of backward reaction.

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For the reaction $A + B \rightleftharpoons C + D$,the equilibrium constant is $K$. If the initial moles of $A$ and $B$ are $1.0 \ mol$ each,what will be the value of the equilibrium constant in a second experiment under the same conditions if the initial moles of $A$ and $B$ are $2 \ mol$ and $3 \ mol$ respectively?

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Given the reactions at $500 \ K$:
$(i) \ H_{2(g)} + 1/2 O_{2(g)} \rightleftharpoons H_2O_{(g)}$,$K_c = 2.4 \times 10^{47}$
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What does the magnitude of $K_c$ indicate about the formation of the product in reaction $(i)$?

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