Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing Schools Business

Features Pricing Schools Business

Zinc Air Batteries: Construction and Components

10 Questions

0 Views

Zinc Air Batteries: Construction and Components

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary component of the anode in a zinc air battery?

Nickel wire mesh

Zinc granules (correct)

MnO2

Carbon

What is the purpose of the gelling agent in the anode?

To reduce the electrolyte amount

To immobilize the composite (correct)

To increase the surface area

To enhance the reaction rate

What is the role of the air access holes in the cathode?

To increase the surface area of the cathode

To reduce the voltage of the battery

To allow oxygen to enter the battery (correct)

To provide a pathway for electrolyte to flow

What is the primary function of the separator in a zinc air battery?

To prevent mixing of the anode and cathode materials (B) Signup and view all the answers

What is the overall reaction that occurs in a zinc air battery?

Zn + 1/2O2 → ZnO + H2O + 2e- (A) Signup and view all the answers

What is the advantage of a zinc air battery in terms of energy storage?

High energy density (C) Signup and view all the answers

What is a disadvantage of zinc air batteries?

Limited power output (D) Signup and view all the answers

What is the purpose of the MnO2 in the cathode?

To act as a catalyst (D) Signup and view all the answers

What is the electrochemical reaction that occurs at the anode?

Zn → Zn2+ + 2e- (B) Signup and view all the answers

What is the voltage of a zinc air battery?

1.4 V (A) Signup and view all the answers