   # The value of Δ U for the decomposition of 7.647 g of ammonium nitrate can be measured in a bomb calorimeter. The reaction that occurs is NH 4 NO 3 (s) → N 2 O(g) + 2 H 2 O(g) The temperature of the calorimeter, which contains 415 g of water, increases from 18.90 °C to 20.72 °C. The heat capacity of the bomb is 155 J/K. What is the value of Δ U for this reaction, in kl/mol? ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

#### Solutions

Chapter
Section ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 5, Problem 97IL
Textbook Problem
20 views

## The value of ΔU for the decomposition of 7.647 g of ammonium nitrate can be measured in a bomb calorimeter. The reaction that occurs isNH4NO3(s) → N2O(g) + 2 H2O(g)The temperature of the calorimeter, which contains 415 g of water, increases from 18.90 °C to 20.72 °C. The heat capacity of the bomb is 155 J/K. What is the value of ΔU for this reaction, in kl/mol? Interpretation Introduction

Interpretation:

The change in internal energy has to be calculated.

Concept Introduction:

Heat energy required to raise the temperature of 1g of substance by 1K.Energy gained or lost can be calculated using the below equation.

q=C×m×ΔT

Where, q= energy gained or lost for a given mass of substance (m), C =specific heat capacity, ΔT= change in temperature.

### Explanation of Solution

Given ΔT=1.82K

Specific heat capacity of water is 4.184J/gK

Heat capacity of calorimeter is 155J/K

Mass of the water is 415g

Using specific capacity of heat equation

q=C×m×ΔT, the values calculated.

Heat absorbed by the calorimeter =155J/K×1.82K =282J

Heat absorbed by water = 415g×4.184J/gK×1.82K = 3160J

Total heat absorbed =282J+3160J

### 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

Find more solutions based on key concepts
Some segments of a protein strand coil, somewhat like a metal spring, because a. amino acids at different place...

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

How is a neuron different from a nerve?

Biology (MindTap Course List)

What impact has recombinant DNA technology had on genetics and society?

Human Heredity: Principles and Issues (MindTap Course List)

What kind of spectrum does a neon sign produce?

Horizons: Exploring the Universe (MindTap Course List)

What is a metabolic pathway?

Chemistry for Today: General, Organic, and Biochemistry

A cylinder is closed at both ends and has insulating EZZ3 walls. It is divided into two compartments by an insu...

Physics for Scientists and Engineers, Technology Update (No access codes included)

Which Terrestrial worlds have thin or no atmospheres?

Foundations of Astronomy (MindTap Course List)

What is the most common feature of a depositional coast?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin 