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Chemical Equilibrium question

2023 · 29 Jan · Shift 1 · Q19

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JEE Main
Chemistry
Chemical Equilibrium
2023 · 29 Jan · Shift 1 · Q19

Chemical Equilibrium question

2023 · 29 Jan · Shift 1 · Q19

JEE MainChemistryChemical EquilibriumNumerical+4 / −1

Consider the following reaction approaching equilibrium at 27

^\circ

C and 1 atm pressure

\mathrm{A+B}

\mathrel{\mathop{\kern0pt\rightleftharpoons} \limits_{{k_r} = {{10}^2}}^{{k_f} = {{10}^3}}}

\mathrm{C+D}

The standard Gibb's energy change

\mathrm{(\Delta_r G^\theta)}

at 27

^\circ

C is (

-

)

\underline{\hspace{2cm}}

kJ mol

^{-1}

(Nearest integer). (Given :

\mathrm{R=8.3~J~K^{-1}~mol^{-1}}

and

\mathrm{\ln 10=2.3}

)

Numerical answer

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