Download App

Electrochemistry — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryElectrochemistry2 Marks
Question
Under what condition is $\text{E}_{\text{Cell}}=0\text{ or }\Delta_\text{r}\text{G}=0?$
✓

Answer

At equilibrium i.e., when the cell is completely discharged,
$\text{E}_{\text{Cell}}=0\text{ and }\Delta_\text{G}=0$
$\therefore\ \Delta_\text{G}=-\text{nFE}$
$\therefore\text{ when E}=0,\Delta_\text{G}$ is also equal zero.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Electrochemistry→Electrochemistry — all question types→Chemistry STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

What are the IUPAC names of the insecticide DDT and benzenehexachloride? Why is their use banned in India and other countries?
→
Define the following terms:
  1. Abnormal molar mass.
  2. van’t Hoff factor (i).
→
What is meant by positive and negative deviations from Raoult's law and how is the sign of $\Delta_{\text {mix }} H$ related to positive and negative deviations from Raoult's law?
→
What type of cell is a lead storage battery? Write the anode and the cathode reactions and the overall cell reaction occurring in the use of a lead storage battery.
→
Compound $'A\ ’$ with molecular formula $\ce{C_4H_9Br}$ is treated with aq. $\text{KOH}$ solution. The rate of this reaction depends upon the concentration of the compound $'A\ ’$ only. When another optically active isomer $'B’$ of this compound was treated with aq. $\text{KOH}$ solution, the rate of reaction was found to be dependent on concentration of compound and $\text{KOH}$ both.
  1. Write down the structural formula of both compounds $'A\ ’$ and $'B\ ’$.
  2. Out of these two compounds, which one will be converted to the product with inverted configuration.
→
Write note on trichloromethane (Chloroform)
→
Show the Structure of $\alpha-D-(+)$ glucose and $\beta-D-(+)$ glucose with the help of diagram-
→
The following data were obtained during the first order thermal decomposition of $SO_2Cl_2$ at a constant volume:
$SO_2Cl_2(g) \rightarrow SO_2(g) + Cl_2(g)$
Experiment
Time$/s^{-1}$
Total pressure/atm
$1$
$2$
$0$
$100$
$0.4$
$0.7$
Calculate the rate constant.
$($Given: $\log4 = 0.6021, \log2 = 0.3010)$
→
Tarnished silver contains $\ce{Ag_2S}.$ Can this tarnish be removed by placing tarnished silver ware in an aluminium pan containing an inert electrolytic solution such as $\ce{NaCl}$? The standard electrode potential for half reaction$:$
$\text{Ag}_2\text{S(s) + 2e}^-\xrightarrow{\ \ \ \ \ \ \ }2\text{Ag(s) + S}^{2-}\text{is}-0.71\text{V}$
and for $\text{Al}^{3+}+3\text{e}^{-}\xrightarrow{ \ \ \ \ \ \ \ \ \ \ }2\text{Al(s) is}-1.66\text{V}$
→
Compare the chemistry of the actinoid with that of lanthanoids with reference to:
Oxidation states.
→