For the electrochemical reaction: Zn 2+ (aq) + Cu(s) → Zn(s) + Cu 2+ (aq) [E° cell = – 1.10 V] What does the negative value of E° cell indicate? - Wired Faculty

Electrochemistry

Question

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For the electrochemical reaction:
Zn²⁺(aq) + Cu(s) → Zn(s) + Cu²⁺(aq)
[E°_cell = – 1.10 V]
What does the negative value of E°_cell indicate?

Solution

Answer:

The reaction is non-spontaneous or cell is not working.

Some More Questions From Electrochemistry Chapter

Suggest a way to determine the Λ°_m value of water.

The molar conductivity of 0.025 mol L^–1methanoic acid is 46.1 S cm² mol^–1. Calculate its degree of dissociation and dissociation constant. Give λ°(H⁺) = 349.6 S cm²mol^–1 and λ° (HCOO^– ) = 54.6 s cm² mol^–1.

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Electrochemistry

For the electrochemical reaction:
Zn²⁺(aq) + Cu(s) → Zn(s) + Cu²⁺(aq)
[E°_cell = – 1.10 V]
What does the negative value of E°_cell indicate?

Some More Questions From Electrochemistry Chapter

Suggest a way to determine the Λ°_m value of water.

The molar conductivity of 0.025 mol L^–1methanoic acid is 46.1 S cm² mol^–1. Calculate its degree of dissociation and dissociation constant. Give λ°(H⁺) = 349.6 S cm²mol^–1 and λ° (HCOO^– ) = 54.6 s cm² mol^–1.

If the current of 0.5 ampere flows through a metallic wire for 2 hours, then how many electrons flow through the wire?

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What is the quantity of electricity in coulombs needed to reduce 1 mol of Cr₂O₇^2-?

Write the chemistry of recharging the lead storage battery, highlighting all the materials that are involved during recharging.

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Electrochemistry

For the electrochemical reaction:Zn2+(aq) + Cu(s) → Zn(s) + Cu2+(aq)[E°cell = – 1.10 V]What does the negative value of E°cell indicate?

Some More Questions From Electrochemistry Chapter

Suggest a way to determine the Λ°m value of water.

The molar conductivity of 0.025 mol L–1 methanoic acid is 46.1 S cm2 mol–1. Calculate its degree of dissociation and dissociation constant. Give λ°(H+) = 349.6 S cm2 mol–1 and λ° (HCOO– ) = 54.6 s cm2 mol–1.

If the current of 0.5 ampere flows through a metallic wire for 2 hours, then how many electrons flow through the wire?

Suggest a list of metals that are extracted electrolytically.

Consider the reaction: Cr2O72– + 14H+ + 6e- → 2Cr3+ + 8H2OWhat is the quantity of electricity in coulombs needed to reduce 1 mol of Cr2O72-?

Write the chemistry of recharging the lead storage battery, highlighting all the materials that are involved during recharging.

Suggest two materials other than hydrogen that can be used as fuels in fuel cells.

Name the electrolyte used in fuel cell?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

For the electrochemical reaction:
Zn²⁺(aq) + Cu(s) → Zn(s) + Cu²⁺(aq)
[E°_cell = – 1.10 V]
What does the negative value of E°_cell indicate?

Suggest a way to determine the Λ°_m value of water.

The molar conductivity of 0.025 mol L^–1methanoic acid is 46.1 S cm² mol^–1. Calculate its degree of dissociation and dissociation constant. Give λ°(H⁺) = 349.6 S cm²mol^–1 and λ° (HCOO^– ) = 54.6 s cm² mol^–1.

Consider the reaction: Cr₂O₇^2– + 14H⁺ + 6e- → 2Cr³⁺ + 8H₂O
What is the quantity of electricity in coulombs needed to reduce 1 mol of Cr₂O₇^2-?