Question
Asked Oct 23, 2019
623 views

When a 0.850 g sample of a mixture of volatile hydrocarbons is burned in a bomb calorimeter with a heat capacity of 4440 J/°C, the temperature rises by 4.00°C.

What is the change in energy in kJ

Calculate the energy change by the combustion of a 5.50 g sample of the same mixture.

Thank you!

check_circle

Expert Answer

Step 1

Combustion reactions are those chemical reactions in which hydrocarbons are burnt in the presence of air or oxygen in order to produce carbon dioxide and water.

Step 2

The heat capacity of the calorimeter (Ccal) is given to be 4440 J/oC.

The change in the temperature of the system is given to be 4.00oC.

The heat of the calorimeter can be calculated using the following equation as follows:

fullscreen
Step 3

The heat which has been released by the system is the he...

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in
ScienceChemistry

Physical Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Find the pH and percent ionization of each HF solution. (Ka for HF is 6.8×10−4.) a.  Find the pH of ...

A: The pH of a solution is related to the hydrogen ion concentration of a solution. For a solution of w...

question_answer

Q: balance using the smallest stoichometry coeifficents

A: To balance the given chemical reaction, it can be written as

question_answer

Q: I need help with question 3 but you need question 2 to answer it. The answer that I got for 2 was 5....

A: The molarity of a solution can be defined as the concentration of the given solution and refers to t...

question_answer

Q: Use the projection operator method, draw the SALC of the sigma bonds in ICl4 -

A: ICl4- has a square planar geometry as shown below. The four sigma bonds can be taken as basis vector...

question_answer

Q: write the beta decay equation of sulfur -35

A: The beta particle is represented as -1β0. When beta decay occurs then the atomic number changes, but...

question_answer

Q: Olympic cyclists fill their tires with helium to make them lighter. Assume the volume of the tire is...

A: First, the moles of air present in tires is calculated as follows,

question_answer

Q: If 101 g of CaO and 280. g of NH4Cl are mixed, what is the limiting reactant, and what mass of NH3 c...

A: Given:Mass of CaO = 101 gMass of NH4Cl = 280.0 gBalanced chemical reaction is given by,

question_answer

Q: When silver oxide dissolves in water, the followingreaction occurs:Ag2O(s) + H2O(/) ==>  2 Ag^+(a...

A: silver oxide gets dissociation in to their ions, silver oxide dissociates forms Ag+ ion and OH- ions...

question_answer

Q: A 10.0-g sample of C2H5OH is burned completely in air. How many moles of H2O are formed?

A: The molar mass of the ethanol is 46 g/mol. The number of moles in 10.0 g of a sample of ethanol is c...