27 of 42 (> Constants | Periodic Table A calorimeter is an insulated device in which a chemical reaction is contained. By measuring the temperature change, AT, we can calculate the heat released or absorbed during the reaction using the following equation: Consider the reaction C12 H22O11 (s) + 1202(g)-+12CO2(g) + 11H2O(1) in which 10.0 g of sucrose, C12 H22011, was buned in a bomb calorimeter with a heat capacity of 7.50 kJ/C. The temperature increase inside the calorimeter was found to be 22.0°C. Calculate the change in internal energy, AE, for this reaction per mole of sucrose. g= specific heat x mass x AT Or, if the calorimeter has a predetermined heat capacity, C, the equation becomes Express the change in internal energy in kilojoules per mole to three significant figures. q=C x AT • View Available Hint(s) At constant pressure, the enthalpy change for the reaction, AH, is equal to the heat, gp, that is, HV ΑΣφ ? AH= q, AE = kJ/mol but it is usualy expressed per mole of reactant and with a sign opposite to that of q for the surroundings. The total internal energy change, AE (sometimes referred to as AU), is the sum of heat, q, and work done, w: Submit Previous Answers AE=g+ w X Incorrect; Try Again; 23 attempts remaining However, at constant volume (as with a bomb calorimeter) w =0 and so AE= q.. Provide Feedback Next > P Pearson P A 2:50
27 of 42 (> Constants | Periodic Table A calorimeter is an insulated device in which a chemical reaction is contained. By measuring the temperature change, AT, we can calculate the heat released or absorbed during the reaction using the following equation: Consider the reaction C12 H22O11 (s) + 1202(g)-+12CO2(g) + 11H2O(1) in which 10.0 g of sucrose, C12 H22011, was buned in a bomb calorimeter with a heat capacity of 7.50 kJ/C. The temperature increase inside the calorimeter was found to be 22.0°C. Calculate the change in internal energy, AE, for this reaction per mole of sucrose. g= specific heat x mass x AT Or, if the calorimeter has a predetermined heat capacity, C, the equation becomes Express the change in internal energy in kilojoules per mole to three significant figures. q=C x AT • View Available Hint(s) At constant pressure, the enthalpy change for the reaction, AH, is equal to the heat, gp, that is, HV ΑΣφ ? AH= q, AE = kJ/mol but it is usualy expressed per mole of reactant and with a sign opposite to that of q for the surroundings. The total internal energy change, AE (sometimes referred to as AU), is the sum of heat, q, and work done, w: Submit Previous Answers AE=g+ w X Incorrect; Try Again; 23 attempts remaining However, at constant volume (as with a bomb calorimeter) w =0 and so AE= q.. Provide Feedback Next > P Pearson P A 2:50
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:27 of 42 (>
Constants | Periodic Table
A calorimeter is an insulated device in which a
chemical reaction is contained. By measuring the
temperature change, AT, we can calculate the
heat released or absorbed during the reaction using
the following equation:
Consider the reaction
C12 H22O11 (s) + 1202(g)-12CO2(g) + 11H2O(1)
in which 10.0 g of sucrose, C12 H22011, was bumed in a bomb calorimeter with a heat capacity of 7.50
kJ/C. The temperature increase inside the calorimeter was found to be 22.0°C. Calculate the change in
internal energy, AE, for this reaction per mole of sucrose.
q= specific heat x mass x AT
Or, if the calorimeter has a predetermined heat
capacity, C, the equation becomes
Express the change in internal energy in kilojoules per mole to three significant figures.
9=C x AT
• View Available Hint(s)
At constant pressure, the enthalpy change for the
reaction, AH, is equal to the heat, gp, that is,
V ΑΣφ
?
AH= q,
AE =
kJ/mol
but it is usualy expressed per mole of reactant and
with a sign opposite to that of g for the
surroundings. The total internal energy change,
AE (sometimes referred to as AU), is the sum of
heat, q, and work done, w:
Submit
Previous Answers
AE=g+ w
X Incorrect; Try Again; 23 attempts remaining
However, at constant volume (as with a bomb
calorimeter) w = 0 and so AE=qu-
Provide Feedback
Next >
P Pearson
P A 2:50
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