A 0.07 mol sample of octane, C3H18, absorbed 3.5 x 10° J of energy. Calculate the temperature increase of octane if the molar heat capacity of octane is 254.0 J/K•mol.
A 0.07 mol sample of octane, C3H18, absorbed 3.5 x 10° J of energy. Calculate the temperature increase of octane if the molar heat capacity of octane is 254.0 J/K•mol.
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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Question
4. A 0.07 mol sample of octane, CgHts, absorbed 3.5 × 103 J of energy.
Calculate the temperature increase of octane if the molar heat capacity
of octane is 254.0 J/K •mol.
![the joules
ot cancel.
q = (10.0 mol)
q = 2085 J
The answer should only have two sign
as 2100 J or 2.1 × 10° J.
Verify your results.
needed to raise 10.0 mol Hg 7.5 K.
PRACTICE
LEM
VING
T
1 The molar heat capacity of tungsten is 24.2 J/K•mol. Calculate the
energy as heat needed to increase the temperature of 0.40 mol of
tungsten by 10.0 K.
2 Suppose a sample of NaCl increased in temperature by 2.5 K when the
sample absorbed 1.7 x 10 J of energy as heat. Calculate the number of
moles of NaCl if the molar heat capacity is 50.5 J/K•mol.
3 Calculate the energy as heat needed to increase the temperature of
0.80 mol of nitrogen, N2, by 9.5 K. The molar heat capacity of nitrogen
is 29.1 J/K•mol.
4 A 0.07 mol sample of octane, C3H18, absorbed 3.5 × 10³ J of
Calculate the temperature increase of octane if the molar heat capacity
of octane is 254.0 J/K•mol.
energy.
m00)(lom 0.0S)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F932ef35e-fbb4-4d08-9cfd-1dd171685f36%2F1d898fd2-be21-420c-bb6a-7e686ebadcd4%2Fpeqrrun_processed.jpeg&w=3840&q=75)
Transcribed Image Text:the joules
ot cancel.
q = (10.0 mol)
q = 2085 J
The answer should only have two sign
as 2100 J or 2.1 × 10° J.
Verify your results.
needed to raise 10.0 mol Hg 7.5 K.
PRACTICE
LEM
VING
T
1 The molar heat capacity of tungsten is 24.2 J/K•mol. Calculate the
energy as heat needed to increase the temperature of 0.40 mol of
tungsten by 10.0 K.
2 Suppose a sample of NaCl increased in temperature by 2.5 K when the
sample absorbed 1.7 x 10 J of energy as heat. Calculate the number of
moles of NaCl if the molar heat capacity is 50.5 J/K•mol.
3 Calculate the energy as heat needed to increase the temperature of
0.80 mol of nitrogen, N2, by 9.5 K. The molar heat capacity of nitrogen
is 29.1 J/K•mol.
4 A 0.07 mol sample of octane, C3H18, absorbed 3.5 × 10³ J of
Calculate the temperature increase of octane if the molar heat capacity
of octane is 254.0 J/K•mol.
energy.
m00)(lom 0.0S)
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