For an electrochemical reaction occurring in a galvanic cell- 2Fe-3aq - Zns- Zn-2aq - 2Fe-2aq if concentration of Fe-2 is increased-

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Vant Hoff's Equation and Effect of Temperature on Equilibrium Constant

For an electr...

Question

For an electrochemical reaction occurring in a galvanic cell.
$2 F e_{(a q)}^{+ 3} + Z n_{(s)} \to Z n_{(a q)}^{+ 2} + 2 F e_{(a q)}^{+ 2}$ if concentration of $F e^{+ 2}$ is increased.

E_{c e l l}

will remain unchanged

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E_{c e l l}^{0}

will decrease

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p H

of the solution will change

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less non

P V

work will be obtained

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Solution

The correct option is D less non $P V$ work will be obtained
If $F e^{2 +}$ concenlentration in increase equilibrium moves in backward direction Exolpermu so work coss than $P V$ will be obtained

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Similar questions

Q. In the electrochemical reaction,

2 F e^{3 +} + Z n \to Z n^{2 +} + 2 F e^{2 +}

,
increasing the concentration of

F e^{2 +}

Q. For an electrochemical reaction occuring in a galvanic cell.

2 {F e}_{(a q)}^{+ 3} + {Z n}_{(s)} \to {Z n}_{(a q)}^{+ 2} + 2 {F e}_{(a q)}^{+ 2}

if concentration of

{F e}^{+ 2}

is increased.

Q. For the cell

Z n (s) | Z n^{2 +} (a q) | | C u^{+ 2} (a q) | C u (s)

. The cell potential

E_{c e l l}

can be increased.

At 298 K, the standard reduction potentials for the following half-reactions are given. Which acts as an anode with others in an electrochemical cell?

$Z n^{+ 2} (a q) + 2 e^{-} \to Z n (s),$ -0.762 V

$C r^{+ 3} (a q) + 3 e^{-} \to C r (s),$ -0.740 V

$2 H^{+} (a q) + 2 e^{-} \to H_{2} (g),$ 0.000 V

$F e^{+ 3} (a q) + e^{-} \to F e^{2 +} (a q),$ +0.762 V

Q. In the following electrochemical cell,

P t | H_{2} (x a t m) | H^{\oplus} (p H = y) | | Z n^{2 +} (z M) | Z n

E_{c e l l}^{⊖} = E_{c e l l}

. This will be possible when:

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For an electrochemical reaction occurring in a galvanic cell.2Fe+3(aq)+Zn(s)→Zn+2(aq)+2Fe+2(aq) if concentration of Fe+2 is increased.

The correct option is D less non PV work will be obtainedIf Fe2+ concenlentration in increase equilibrium moves in backward direction Exolpermu so work coss than PV will be obtained

For an electrochemical reaction occurring in a galvanic cell.
$2 F e_{(a q)}^{+ 3} + Z n_{(s)} \to Z n_{(a q)}^{+ 2} + 2 F e_{(a q)}^{+ 2}$ if concentration of $F e^{+ 2}$ is increased.

The correct option is D less non $P V$ work will be obtained
If $F e^{2 +}$ concenlentration in increase equilibrium moves in backward direction Exolpermu so work coss than $P V$ will be obtained