Peanuts and peanut oil are organic materials and burn in air. How many burning peanuts does it take to provide the energy to bring a cup of water up to boiling. temperature (100.0 °C) (200. mL of water at 21.0 °C)? To solve this problem, we assume each peanut, with an average mass of 0.69 g, is 47% peanut oil and 17% starch; the remainder is noncombustible. We further assume peanut oil is palmitic acid, C16H32 O2, with an enthalpy of formation of -848.4 kJ/mol. Starch is a long chain of C6H10O5 units, each unit having an enthalpy of formation of -960. kJ. A, H (kJ/mol) Compound H₂O(g) CO₂ (g) C16H32 O2 (s) C6H10O5 (s) -241.83 -393.51 -848.4 -960.
Peanuts and peanut oil are organic materials and burn in air. How many burning peanuts does it take to provide the energy to bring a cup of water up to boiling. temperature (100.0 °C) (200. mL of water at 21.0 °C)? To solve this problem, we assume each peanut, with an average mass of 0.69 g, is 47% peanut oil and 17% starch; the remainder is noncombustible. We further assume peanut oil is palmitic acid, C16H32 O2, with an enthalpy of formation of -848.4 kJ/mol. Starch is a long chain of C6H10O5 units, each unit having an enthalpy of formation of -960. kJ. A, H (kJ/mol) Compound H₂O(g) CO₂ (g) C16H32 O2 (s) C6H10O5 (s) -241.83 -393.51 -848.4 -960.
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section: Chapter Questions
Problem 110SCQ: Peanuts and peanut oil are organic materials and bum in air. How many burning peanuts does it take...
Related questions
Concept explainers
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Question
Transcribed Image Text:Peanuts and peanut oil are organic materials and burn in air. How many burning peanuts does it take to provide the energy to bring a cup of water up to boiling
temperature (100.0 °C) (200. mL of water at 21.0 °C)? To solve this problem, we assume each peanut, with an average mass of 0.69 g, is 47% peanut oil and 17%
starch; the remainder is noncombustible.
We further assume peanut oil is palmitic acid, C16H32 O2, with an enthalpy of formation of -848.4 kJ/mol. Starch is a long chain of C6H10O5 units, each unit
having an enthalpy of formation of -960. kJ.
AfH˚ (kJ/mol)
Compound
H₂O(g)
CO₂(g)
C16H32 O2 (s)
C6H10 05 (s)
-241.83
-393.51
-848.4
-960.
THNICR
(Express your answer as an integer.)
peanuts
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 8 steps with 8 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781133949640
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
General Chemistry - Standalone book (MindTap Cour…
Chemistry
ISBN:
9781305580343
Author:
Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781133949640
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
General Chemistry - Standalone book (MindTap Cour…
Chemistry
ISBN:
9781305580343
Author:
Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:
Cengage Learning
Chemistry by OpenStax (2015-05-04)
Chemistry
ISBN:
9781938168390
Author:
Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:
OpenStax
Chemistry for Engineering Students
Chemistry
ISBN:
9781337398909
Author:
Lawrence S. Brown, Tom Holme
Publisher:
Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:
9781285199023
Author:
Lawrence S. Brown, Tom Holme
Publisher:
Cengage Learning