JEE Mains · Chemistry · STD 11 - 6.1. Equilibrium - 1 (chemical Equilibrium)
\(2 O _{3}( g ) \rightleftharpoons 3 O _{2}( g )\) At \(300 \,K\), ozone is fifty percent dissociated. The standard free energy change at this temperature and \(1\, atm\) pressure is \((-)\) \(........\,J\, mol ^{-1}\) (Nearest integer) [Given: \(\ln 1.35=0.3\) and \(R =8.3 J K ^{-1} mol ^{-1}\) ]
- A \(102\)
- B \(243\)
- C \(747\)
- D \(545\)
Answer & Solution
Correct Answer
(C) \(747\)
Step-by-step Solution
Detailed explanation
\(2 O _{3} \rightleftharpoons 3 O _{2}( g )\) \(\frac{2}{5} \quad\quad\quad \frac{3}{5}\) \(k _{ p }=\frac{ P _{ O _{2}}^{3}}{ P _{ O _{3}}^{2}}\) \(k_{p}=1.35\) \(\Delta G ^{\circ}=- RT \ln k _{ p }\) \(=-8.3 \times 300 \times \ln 1.35\) \(=-747 \,J / mol\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- In \(3 d\) series, the metal having the highest \(M ^{2+} / M\) standard electrode potential is .... .JEE Mains 2022 Easy
- In acidic medium, \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) shows oxidising action as represented in the half reaction. \(\mathrm{Cr}_2 \mathrm{O}_7^{2-}+\mathrm{XH}^{+}+\mathrm{Ye}^{-} \rightarrow 2 \mathrm{~A}+\mathrm{ZH}_2 \mathrm{O}\) \(\mathrm{X}, \mathrm{Y}, \mathrm{Z}\) and \(\mathrm{A}\) are respectively are _______.JEE Mains 2024 Hard
- \(K _2 Cr _2 O _7\) paper acidified with dilute \(H _2 SO _4\) turns green when exposed toJEE Mains 2023 Medium
- Given below are two statements: Statement \(I :\) Bohr's theory accounts for the stability and line spectrum of \(Li ^{+}\) ion. Statement \(II :\) Bohr's theory was unable to explain the splitting of spectral lines in the presence of a magnetic field. In the light of the above statements, choose the most appropriate answer from the options given below:JEE Mains 2021 Medium
- The number of endothermic process/es from the following is \(A.\) \(I _2( g ) \rightarrow 2 I ( g )\) \(B.\) \(HCl ( g ) \rightarrow H ( g )+ Cl ( g )\) \(C.\) \(H _2 O ( l ) \rightarrow H _2 O ( g )\) \(D.\) \(C ( s )+ O _2( g ) \rightarrow CO _2( g )\) \(E.\) Dissolution of ammonium chloride in waterJEE Mains 2023 Hard
- In which pairs, the first ion is more stable than the second?
JEE Mains 2025 Hard
More PYQs from JEE Mains
- The output voltage in the following circuit is : (Consider ideal diode case)
JEE Mains 2025 Medium - Given below are two statements : Statement \(I\): Aniline reacts with con. \(\mathrm{H}_2 \mathrm{SO}_4\) followed by heating at \(453-473 \mathrm{~K}\) gives \(\mathrm{p}\) aminobenzene sulphonic acid, which gives blood red colour in the 'Lassaigne's test'. Statement \(II\): In Friedel - Craft's alkylation and acylation reactions, aniline forms salt with the \(\mathrm{AlCl}_3\) catalyst. Due to this, nitrogen of aniline aquires a positive charge and acts as deactivating group. In the light of the above statements, choose the correct answer from the options given below :JEE Mains 2024 Hard
- Which of the following are aromatic?
JEE Mains 2024 Medium - Match List \(I\) with List \(II\):
List \(I\) (Mixture) List \(II\) (Separation Technique) \(A\) \(CHCl _3+ C _6 H _5 NH _2\) \(I\) Steam distillation \(B\) \(C _6 H _{14}+ C _5 H _{12}\) \(II\) Differential extraction \(C\) \(C _6 H _5 NH _2+ H _2 O\) \(III\) Distillation \(D\) Organic compound in \(H _2 O\) \(IV\) Fractional distillation JEE Mains 2023 Hard - Let \(A\) be the region enclosed by the parabola \(y^2=2 x\) and the line \(x=24\). Then the maximum area of the rectangle inscribed in the region \(\mathrm{A}\) is ...........JEE Mains 2024 Hard
- The greatest integer less than or equal to the sum of first \(100\) terms of the sequence \(\frac{1}{3}, \frac{5}{9}, \frac{19}{27}, \frac{65}{81}, \ldots \ldots\) is equal toJEE Mains 2022 Hard