iran-konkur 2013 Q218

iran-konkur · Other · konkur-riazi_1392 Not Maths
218. Given that the standard enthalpy of formation of $\mathrm{HCl(g)}$ is $-184\,\mathrm{kJ.mol^{-1}}$ and $\Delta S^\circ$ of the reaction $$\mathrm{H_2(g) + Cl_2(g) \rightarrow 2HCl(g)}$$ at $27^\circ\mathrm{C}$ is $+40\,\mathrm{J.K^{-1}}$, $\Delta G^\circ$ of this reaction is how many kilojoules?
(1) $+365$ (2) $+369$ (3) $-380$ (4) $-196$
\textbf{218.} Given that the standard enthalpy of formation of $\mathrm{HCl(g)}$ is $-184\,\mathrm{kJ.mol^{-1}}$ and $\Delta S^\circ$ of the reaction
$$\mathrm{H_2(g) + Cl_2(g) \rightarrow 2HCl(g)}$$
at $27^\circ\mathrm{C}$ is $+40\,\mathrm{J.K^{-1}}$, $\Delta G^\circ$ of this reaction is how many kilojoules?

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(1) $+365$ \quad (2) $+369$ \quad (3) $-380$ \quad (4) $-196$

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