iran-konkur 2021 Q232

iran-konkur · Other · konkur-riazi_1400_specialized Not Maths
232 - Considering the graphs below, which statement is incorrect? (The scales on the vertical axes of the graphs are equal.)
[Figure: Two energy diagrams. Reaction I shows energy vs. reaction progress for $A(g) + D(g) \rightarrow 2AD(g)$ with activation energy $a$ and energy difference $l$. Reaction II shows energy vs. reaction progress for $2F(g) \rightarrow X(g) + Z(g)$ with energy levels $b$ and energy difference $l$.]
  1. If energy $a$ kJ is supplied, both reactions I and II will proceed.
  2. The mass of $E(g)$ released per mole consumed is $\dfrac{b}{2}$ kJ.
  3. In reaction II, compared to reaction I, the products are more stable than the reactants.
  4. The mass of energy released per mole of $AD(g)$ formed is greater than the energy released per mole of $X(g)$ formed.

\textbf{232 - Considering the graphs below, which statement is \underline{incorrect}?} (The scales on the vertical axes of the graphs are equal.)

\textit{[Figure: Two energy diagrams. Reaction I shows energy vs. reaction progress for $A(g) + D(g) \rightarrow 2AD(g)$ with activation energy $a$ and energy difference $l$. Reaction II shows energy vs. reaction progress for $2F(g) \rightarrow X(g) + Z(g)$ with energy levels $b$ and energy difference $l$.]}

\begin{enumerate}
    \item If energy $a$ kJ is supplied, both reactions I and II will proceed.
    \item The mass of $E(g)$ released per mole consumed is $\dfrac{b}{2}$ kJ.
    \item In reaction II, compared to reaction I, the products are more stable than the reactants.
    \item The mass of energy released per mole of $AD(g)$ formed is greater than the energy released per mole of $X(g)$ formed.
\end{enumerate}

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