BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

Solutions

Chapter
Section
BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
3 views

A 25.0-g sample of pure iron at 85 °C is dropped into 75 g of water at 20. °C. What is the final temperature of the water−iron mixture?

Interpretation Introduction

Interpretation:

The final temperature of the water-iron mixture should be calculated.

Concept Introduction:

The specific heat is defined as the amount of heat per unit mass needed to raise the temperature by one degree Celsius.

It is mathematically represented as follows:

Q=msΔT

Here, Q is heat, m is mass, s is specific heat capacity and ΔT is change in temperature.

Explanation

From table 10.1, the specific heat capacity of water (liquid) is 4.184 J/g C

Also, the specific heat capacity of iron is 0.45 J/g C

The heat required can be calculated using the following equation:

Q=msΔT

Or,

Q=ms(T2T1)

Putting the values for iron:

Q1=(25.0 g)(0.45 J/g C)(T285 C)

Similarly, for water:

Q2=(75 g)(4.184 J/g C)(T220 C)

On adding both, the temperature of iron decreases and that of water increases, thus, the change is same but in opposite direction and, Q1=Q2

Or,

Q1+Q2=0

Putting the values,

(25.0 g)(0.45 J/g C)(T285 C)+(75 g)(4

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Chapter 10 Solutions

Show all chapter solutions add

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

A drinker may delay intoxication somewhat by eating plenty of snacks. quickly finishing drinks. drinking on an ...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

When would irrigation be necessary at this site?

Fundamentals of Physical Geography

In what ways were the models of Ptolemy and Copernicus similar?

Horizons: Exploring the Universe (MindTap Course List)

What are genomes?

Human Heredity: Principles and Issues (MindTap Course List)