1. Real-life heat Capacity is temperature dependent. Consider the formation of water vapor H2(g)+( ½)O2(g) → H20(g) The heat capacities Cp(T) for each of the reactants and the product is given by Cp=a+bT+CT 2 where the constants a, b and c depend on the substance. The above equation is valid from 298 K to 2,000 K. a. The units of a, b and c are .? b. Calculate AH given (298 K)=-60kCal. Express your answers in terms of a, b, c for the reactants and products (aH2, bH2 --) (Answers choices for part b) AH (T) = -60kCal AH (T) = -60kCal + (aH,0 – an, – ļa0,) (T – 298K) + 4 (b,0 – bu, – įbo.) (T² – 298° K²) – (cH,0 – CH, – ¿co,) († - AH (T) = (an,0 – a, – ža0,) (T – 298K) + (bn,0 – bu, – įbo,) (Tª – 298° K²) – (c1,0 – en, – įco,) († - *K) 208K O AH (T) = -60kCal – (an,0 – an, – ža0,) (T – 298K) – † (bH,0 – bu, – įbo,) (Tª – 298° K²) + (cH,0 – cH, – ļco.) († - )
1. Real-life heat Capacity is temperature dependent. Consider the formation of water vapor H2(g)+( ½)O2(g) → H20(g) The heat capacities Cp(T) for each of the reactants and the product is given by Cp=a+bT+CT 2 where the constants a, b and c depend on the substance. The above equation is valid from 298 K to 2,000 K. a. The units of a, b and c are .? b. Calculate AH given (298 K)=-60kCal. Express your answers in terms of a, b, c for the reactants and products (aH2, bH2 --) (Answers choices for part b) AH (T) = -60kCal AH (T) = -60kCal + (aH,0 – an, – ļa0,) (T – 298K) + 4 (b,0 – bu, – įbo.) (T² – 298° K²) – (cH,0 – CH, – ¿co,) († - AH (T) = (an,0 – a, – ža0,) (T – 298K) + (bn,0 – bu, – įbo,) (Tª – 298° K²) – (c1,0 – en, – įco,) († - *K) 208K O AH (T) = -60kCal – (an,0 – an, – ža0,) (T – 298K) – † (bH,0 – bu, – įbo,) (Tª – 298° K²) + (cH,0 – cH, – ļco.) († - )
General Chemistry - Standalone book (MindTap Course List)
11th Edition
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:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.132QP
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:1. Real-life heat Capacity is temperature dependent. Consider the formation of water vapor H2(g)+(
)O2(g) → H20(g) The heat capacities Cp(T) for each of the reactants and the product is given by
Cp-a+bT+CT2 where the constants a, b and c depend on the substance. The above equation is
valid from 298 K to 2,000 K.
a. The units of a, b and c are . ?
b. Calculate AH given (298 K)=-60kCal. Express your answers in terms of a, b, c for the reactants and
products (aH2, bH2 --)
(Answers choices for part b)
дН (T) — — 6оCal
O AH (T) = -60kCal + (aH,0 – aĦ, – ļa0.) (T – 298K) + 4 (b#,0 – bH, – įbo.) (T² – 298° K²) – (CH,0 – CH, – țco.) (+ - )
AH (T) = (an,0 – an, – 40,) (T – 298K) + (bn,0 – bn, – bo;) (T² – 298° K²) – (cH,0 – CH, - co,) (- K)
Ο ΔΗ (T)ε
= -60kCal – (aH,0 – a#, - }a0.) (T – 298K) – | (bH,0 – bH, - bo.) (T² – 298° K²) + (cH,0 – CH, - co.) ( - K)
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 4 steps
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
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
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
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
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:
9781285199047
Author:
John W. Moore, Conrad L. Stanitski
Publisher:
Cengage Learning
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
