/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 34 Suggest three ways to increase t... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 12: Problem 34

Suggest three ways to increase the rate at which zinc dissolves in sulfuric acid.

Short Answer

Expert verified
Increase temperature, agitate the solution, and increase surface area of zinc.

Step by step solution

01

Increase Temperature

Raising the temperature of the solution increases the kinetic energy of the molecules involved. This leads to more frequent and energetic collisions between zinc and sulfuric acid molecules, thereby speeding up the dissolution process.
02

Agitate the Solution

Stirring or shaking the solution helps distribute the reactants more evenly and brings fresh portions of sulfuric acid into contact with the zinc, which can increase the rate of dissolution.
03

Increase Surface Area of Zinc

Breaking the zinc into smaller pieces or using zinc powder increases the surface area available for the reaction. A larger surface area allows more acid molecules to interact with the zinc simultaneously, resulting in a faster dissolution rate.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Chemical Reaction Rate
In chemical reactions, the reaction rate refers to how quickly the reactants are converted into products. This rate can be influenced by several factors. When zinc dissolves in sulfuric acid, the rate of this reaction determines how fast the zinc breaks down. To fully understand the factors that can change this rate, let's explore each one more deeply. By knowing how to control these factors, we can manipulate the speed of chemical reactions in our favor.
Temperature Effect
Temperature is a key player in the speed of chemical reactions. Heating up sulfuric acid increases the kinetic energy of its molecules. This extra energy makes the molecules move faster and collide more often.
These collisions must have enough energy to break bonds and form new ones, which is why hotter conditions usually speed up reactions.
  • More frequent collisions result in a higher reaction rate.
  • The collisions also become more energetic, further enhancing the rate.
So, increasing the temperature can be a very effective way to speed up the dissolution of zinc in sulfuric acid.
Agitation and Mixing
Mixing, shaking, or stirring a solution is another method to boost the rate of a chemical reaction. When you stir sulfuric acid, it helps to move unreacted portions of acid into contact with the zinc.
This consistent movement ensures that the reactants are well-distributed. Without agitation, the reactants might gather in one area, slowing down the reaction.
Agitation ensures even distribution and helps maintain a consistent reaction rate by:
  • Bringing fresh reactant molecules into contact with each other.
  • Preventing the build-up of product molecules from hindering the reaction.
Thus, stirring the solution can notably increase the dissolution rate of zinc.
Surface Area in Chemical Reactions
The surface area of the reactants plays a crucial role in the rate of chemical reactions. Zinc can be used as a solid block or in powdered form. Using smaller pieces or even zinc powder maximizes the surface area.
A larger surface area allows more sulfuric acid molecules to come into contact with zinc at the same time.
As a result, the reaction proceeds faster. This principle is especially important in industrial processes where efficiency is key.
  • Small pieces and powders provide more area for acid to interact with.
  • A larger surface area enables more frequent and simultaneous reactions.
Hence, increasing the surface area of zinc is a practical way to speed up its dissolution in sulfuric acid.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

The three gases \(\mathrm{N}_{2}, \mathrm{O}_{2},\) and \(\mathrm{NO}\) are in equilibrium. The formation of NO is exothermic. Write the equation for the equilibrium. How would a decrease in temperature affect the equilibrium? A decrease in pressure? A lower concentration of \(\mathrm{N}_{2}\) ? A lower concentration of NO? The presence of a catalyst?

What is the fundamental role of activation energy in starting an exothermic reaction?

The reaction \(2 \mathrm{SO}_{2}+\mathrm{O}_{2} \longrightarrow 2 \mathrm{SO}_{3}\) is exothermic. How will a rise in temperature affect the yield of \(\mathrm{SO}_{3}\) in an equilibrium mixture of the three gases? Will an increase in pressure raise or lower this yield? In what possible way can the speed of the reaction be increased at moderate temperatures?

What becomes of the electric energy provided in electrolysis? In what device is this energy transformation reversed?

In the refining of iron, the iron(III) oxide, \(\mathrm{Fe}_{2} \mathrm{O}_{3}\), in iron ore is reduced by carbon (in the form of coke) to yield metallic iron and carbon dioxide. Write the balanced equation of the process.
See all solutions

Recommended explanations on Physics Textbooks

Measurements

Read Explanation

Magnetism and Electromagnetic Induction

Read Explanation

Wave Optics

Read Explanation

Fields in Physics

Read Explanation

Quantum Physics

Read Explanation

Modern Physics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.