BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Calculate the amount of energy necessary to raise the temperature of 1.00 L of ethanol (d = 0.7849 g/cm3) from 25.0 °C to its boiling point (78.3 °C) and then to vaporize the liquid. (Cethanol = 244 J/g · K; heat of vaporization at 78.3 °C = 38.56 kJ/mol.)

Interpretation Introduction

Interpretation:

For a given volume of ethanol amount of heat energy required to raise the temperature to its boiling point and then to vaporize has to be determined.

Concept Introduction:

Heat capacity:

Heat energy required to raise the temperature of 1g of substance by 1k.

The amount of 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

Given data is:

Amount of ethanol is 1.0L

Specific heat capacity of ethanol is 2.44J/g.K

Heat of vaporization is 38.56kJ/mol

Density of ethanol is 0.7849g/cm3

Volume of ethanol is 1L

So, the mass of ethanol is 78.49kg

To raise the temperature of ethanol from 250C to 780C

  q=C×m×ΔT

The relation between heat of vaporization and heat and mass can be represented as:

  Hv

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

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Which is required as part of hemoglobin? iron calcium vitamin C potassium

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

3-71 The ion O6+ has a complete outer shell. Why is this ion not stable?

Introduction to General, Organic and Biochemistry

Explain how Kapler’s lows contradict uniform circular motion.

Horizons: Exploring the Universe (MindTap Course List)

Following the procedure used in Example 10.7, prove that the moment of inertia about the y axis of the rigid ro...

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