Get a Free E-Book! ($50 Value)
HIRE A WRITER!
Paper Types
Disciplines
Get a Free E-Book! ($50 Value)

Enthalpy Combustion of Alcohols, Lab Report Example

Pages: 1

Words: 363

Lab Report

Enthalpy Change during combustion (∆H) = mc∆T

Note: The mass of the spirit lamp with alcohol was averaged together to represent all three trials for each type of alcohol.

Methanol

Volume of water = 100 cm3

Mass of Water (m) = Volume x Density

= 100 cm3 x 1 g/cm3

= 100 g

Temperature Before Heating: 27 degrees Celsius

Temperature After Heating: 37 degrees Celsius

Total Change in Temperature: 37 degrees Celsius – 27 degrees Celsius

= 10 degrees Celsius

Specific Heat Capacity of Water = 4.18 J g-1 K-1

Therefore:

Enthalpy Change = 100 cm3 x 4.18 J g-1 K-1 x 10 K

Enthalpy Change = 4180 J

Ethanol

Volume of water = 100 cm3

Mass of Water (m) = Volume x Density

= 100 cm3 x 1 g/cm3

= 100 g

Temperature Before Heating: 27 degrees Celsius

Temperature After Heating: 39 degrees Celsius

Total Change in Temperature: 39 degrees Celsius – 27 degrees Celsius

= 12 degrees Celsius

Specific Heat Capacity of Water = 4.18 J g-1 K-1

Therefore:

Enthalpy Change = 100 cm3 x 4.18 J g-1 K-1 x 12 K

Enthalpy Change = 5016 J

Propanol

Volume of water = 100 cm3

Mass of Water (m) = Volume x Density

= 100 cm3 x 1 g/cm3

= 100 g

Temperature Before Heating: 27 degrees Celsius

Temperature After Heating: 40 degrees Celsius

Total Change in Temperature: 40 degrees Celsius – 27 degrees Celsius

= 13 degrees Celsius

Specific Heat Capacity of Water = 4.18 J g-1 K-1

Therefore:

Enthalpy Change = 100 cm3 x 4.18 J g-1 K-1 x 13 K

Enthalpy Change = 5434J

Butanol

Volume of water = 100 cm3

Mass of Water (m) = Volume x Density

= 100 cm3 x 1 g/cm3

= 100 g

Temperature Before Heating: 28 degrees Celsius

Temperature After Heating: 39 degrees Celsius

Total Change in Temperature: 41 degrees Celsius – 28 degrees Celsius

= 12 degrees Celsius

Specific Heat Capacity of Water = 4.18 J g-1 K-1

Therefore:

Enthalpy Change = 100 cm3 x 4.18 J g-1 K-1 x 13 K

Enthalpy Change = 5434 J

Pentanol

Volume of water = 100 cm3

Mass of Water (m) = Volume x Density

= 100 cm3 x 1 g/cm3

= 100 g

Temperature Before Heating: 27 degrees Celsius

Temperature After Heating: 39 degrees Celsius

Total Change in Temperature: 43 degrees Celsius – 28 degrees Celsius

= 12 degrees Celsius

Specific Heat Capacity of Water = 4.18 J g-1 K-1

Therefore:

Enthalpy Change = 100 cm3 x 4.18 J g-1 K-1 x 15 K

Enthalpy Change = 6270 J

Time is precious

Time is precious

don’t waste it!

Get instant essay
writing help!
Get instant essay writing help!
Plagiarism-free guarantee

Plagiarism-free
guarantee

Privacy guarantee

Privacy
guarantee

Secure checkout

Secure
checkout

Money back guarantee

Money back
guarantee

Related Lab Report Samples & Examples

Intercropping Pac Choi With Lettuce and Swiss Chard With Basil, Lab Report Example

Introduction Intercropping is defined as the practice of growing two or more crops closely in order to maximize the crop yield on a single plot [...]

Pages: 1

Words: 882

Lab Report

Fomite Transmission, Lab Report Example

Introduction This purpose of this lab exercise is to evaluate the tendency of microbes to reside and proliferate within tested environments. The testing environments selected [...]

Pages: 1

Words: 302

Lab Report

Abercrombie & Fitch, Lab Report Example

After 96 years in the sporting goods and outdoor clothing business, Abercrombie & Fitch (A&F) was purchased by Limited Brands and transformed into a purveyor [...]

Pages: 1

Words: 971

Lab Report

Purple Coneflower, Lab Report Example

Purple coneflower, whose Latin name is Echinacea purpurea, is a member of the Aster family. It is a tall perennial with pink-purple blossoms and is [...]

Pages: 1

Words: 308

Lab Report

The Effect of Intercropping Pac Choi, Lab Report Example

The Effect of Intercropping Pac Choi with Lettuce and Swiss Chard with Basil on Plant Growth Introduction Intercropping is defined as the practice of growing [...]

Pages: 1

Words: 618

Lab Report

Spirometry as an Indicator of Vital Lung Capacity, Lab Report Example

Abstract Respiration encompasses the control of breathing, gas transport and transfer, and ventilation. All these functions are essential in the extraction, and distribution of air [...]

Pages: 1

Words: 807

Lab Report

Intercropping Pac Choi With Lettuce and Swiss Chard With Basil, Lab Report Example

Introduction Intercropping is defined as the practice of growing two or more crops closely in order to maximize the crop yield on a single plot [...]

Pages: 1

Words: 882

Lab Report

Fomite Transmission, Lab Report Example

Introduction This purpose of this lab exercise is to evaluate the tendency of microbes to reside and proliferate within tested environments. The testing environments selected [...]

Pages: 1

Words: 302

Lab Report

Abercrombie & Fitch, Lab Report Example

After 96 years in the sporting goods and outdoor clothing business, Abercrombie & Fitch (A&F) was purchased by Limited Brands and transformed into a purveyor [...]

Pages: 1

Words: 971

Lab Report

Purple Coneflower, Lab Report Example

Purple coneflower, whose Latin name is Echinacea purpurea, is a member of the Aster family. It is a tall perennial with pink-purple blossoms and is [...]

Pages: 1

Words: 308

Lab Report

The Effect of Intercropping Pac Choi, Lab Report Example

The Effect of Intercropping Pac Choi with Lettuce and Swiss Chard with Basil on Plant Growth Introduction Intercropping is defined as the practice of growing [...]

Pages: 1

Words: 618

Lab Report

Spirometry as an Indicator of Vital Lung Capacity, Lab Report Example

Abstract Respiration encompasses the control of breathing, gas transport and transfer, and ventilation. All these functions are essential in the extraction, and distribution of air [...]

Pages: 1

Words: 807

Lab Report

Get a Free E-Book ($50 in value)

Get a Free E-Book

How To Write The Best Essay Ever!

How To Write The Best Essay Ever!