JEE Mains · Chemistry · STD 12 - 2. Electrochemistry
For the given cell ; \(Cu ( s )\left| Cu ^{2+}\left( C _{1} M \right) \| Cu ^{2+}\left( C _{2} M \right)\right| Cu ( s )\) change in Gibbs energy \((\Delta G )\) is negative, if :
- A \(C _{1}=2 C _{2}\)
- B \(C_{2}=\frac{C 1} {\sqrt{2}}\)
- C \(C _{1}= C _{2}\)
- D \(C _{2}=\sqrt{2} C _{1}\)
Answer & Solution
Correct Answer
(D) \(C _{2}=\sqrt{2} C _{1}\)
Step-by-step Solution
Detailed explanation
\(\Delta G =- n F E _{\text {cell }}\) \(\Delta G\) is negative, if \(E _{\text {cell }}\) is positive Anode : \(\quad Cu ( s ) \longrightarrow Cu ^{-2}\left( C _{1}\right)+2 e ^{-}: E ^{\circ}\)…
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
- Which of the following conversions involves change in both shape and hybridisation?JEE Mains 2018 Medium
- Given below are two statements:
Statement I: \(3\)-phenylpropene reacts with HBr and gives secondary alkyl bromide having a chiral carbon atom as the major product.
Statement II: Aryl chlorides and aryl cyanides can be prepared by Sandmeyer reaction as well as Gattermann reaction.
In the light of the above statements, choose the correct answer from the options given belowJEE Mains 2026 Hard - If IUPAC name of an element is "Unununnium" then the element belongs to nth group of periodic table. The value of n is _______.JEE Mains 2024 Medium
- The complex that can show fac-and mer-isomers isJEE Mains 2020 Medium
- Assertion : Nitrogen and oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen. Reason : The reaction between nitrogen and oxygen requires high temperature.JEE Mains 2015 Medium
- The number of paramagnetic complex among \(\left[\mathrm{FeF}_6\right]^{3-},\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-},\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-},\left[\mathrm{Co}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\), \(\left[\mathrm{MnCl}_6\right]^{3-}\) and \(\left[\mathrm{CoF}_6\right]^{3-}\), which involved \(\mathrm{d}^2 \mathrm{sp}^3\) hybridization is ____.JEE Mains 2025 Medium
More PYQs from JEE Mains
- The number of points of discontinuity of the function \(f(\mathrm{x})=\left[\frac{\mathrm{x}^2}{2}\right]-[\sqrt{\mathrm{x}}], \mathrm{x} \in[0,4]\), where \([\cdot]\) denotes the greatest integer function is ________JEE Mains 2025 Easy
- An electrical bulb rated \(220\,V , 100\,W\), is connected in series with another bulb rated \(220\,V\), \(60\,W\).If the voltage across combination is \(220\,V\), the power consumed by the \(100\,W\) bulb will be about \(........... W\)JEE Mains 2022 Medium
- Which one of the following compounds of Group\(-14\) elements is not known?JEE Mains 2021 Medium
- The potential energy of a particle of mass \(4\,kg\) in motion along the \(x\)-axis is given by \(U =4(1-\cos 4 x )\,J\). The time period of the particle for small oscillation \((\sin \theta \simeq \theta)\) is \(\left(\frac{\pi}{ K }\right)\,s\). The value of \(K\) is .......JEE Mains 2022 Hard
- Two cylindrical rods A and B made of different materials, are joined in a straight line. The ratio of lengths, radii and thermal conductivities of these rods are :
\(\frac{\mathrm{L}_{\mathrm{A}}}{\mathrm{L}_{\mathrm{B}}}=\frac{1}{2}, \frac{\mathrm{r}_{\mathrm{A}}}{\mathrm{r}_{\mathrm{B}}}=2\) and \(\frac{\mathrm{K}_{\mathrm{A}}}{\mathrm{K}_{\mathrm{B}}}=\frac{1}{2}\). The free ends of rods A and B are maintained at \(400 \mathrm{~K}, 200 \mathrm{~K}\), respectively. The temperature of rods interface is ________ K, when equilibrium is established.JEE Mains 2025 Hard - If the constant term, in binomial expansion of \(\left(2 x^{r}+\frac{1}{x^{2}}\right)^{10}\) is \(180,\) than \(r\) is equal to \(......\)JEE Mains 2021 Easy