Calculate the heat of combustion at 37°C.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
icon
Related questions
Question
100%

In many biochemical processes, lactose is a nutrient that is oxidized after the following reaction.

C12H22O11(s)+ 12 O2(g) →12 CO2(g) + 11 H2O(l)

The heat of combustion at 25 °C -5648.8 kJ/mol. Calculate the heat of combustion at 37°C. Lactose C12H22O11(s) has a molar mass of 342.3 g/mol and a specific heat capacity of 1.2 J g-1K-1. How much heat must be added to heat 1 mol of lactose from 25 °C to 37 °C?

(Answer: -5643 kJ; 4929 J)

Forbindelse = compound

Varmekapasitet = Heat capacity

Oppgave 2. Forbrenning av laktose ved 37 °C
I mange biokjemiske prosesser er laktose et næringsmiddel som oksideres etter følgende reaksjon.
C12H22011(s) + 12 O2(g) → 12 CO₂(g) + 11 H₂O(/)
Forbrenningsvarmen ved 25 °C er -5648,8 kJ/mol. Beregn forbrenningsvarmen ved 37 °C. Laktose
C12H22O11(s) har molar masse 342,3 g/mol og spesifikk varmekapasitet 1,2 J g¹ K². Hvor mye varme
må tilføres for å varme 1 mol laktose fra 25 °C til 37 °C? (Svar: -5643 kJ; 4929 J)
C12H22O11(s)
Forbindelse
Varmekapasitet
mol K
O₂(g)
29,38
CO₂(g)
37,45
H₂O(l)
75,32
Transcribed Image Text:Oppgave 2. Forbrenning av laktose ved 37 °C I mange biokjemiske prosesser er laktose et næringsmiddel som oksideres etter følgende reaksjon. C12H22011(s) + 12 O2(g) → 12 CO₂(g) + 11 H₂O(/) Forbrenningsvarmen ved 25 °C er -5648,8 kJ/mol. Beregn forbrenningsvarmen ved 37 °C. Laktose C12H22O11(s) har molar masse 342,3 g/mol og spesifikk varmekapasitet 1,2 J g¹ K². Hvor mye varme må tilføres for å varme 1 mol laktose fra 25 °C til 37 °C? (Svar: -5643 kJ; 4929 J) C12H22O11(s) Forbindelse Varmekapasitet mol K O₂(g) 29,38 CO₂(g) 37,45 H₂O(l) 75,32
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Process Dynamics and Control, 4e
Process Dynamics and Control, 4e
Chemical Engineering
ISBN:
9781119285915
Author:
Seborg
Publisher:
WILEY
Industrial Plastics: Theory and Applications
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The