Convert 7 x 10-3 Cal (dietary!) to J: ...

Chemistry
9th Edition
ISBN:9781133611097
Author:Steven S. Zumdahl
Publisher:Steven S. Zumdahl
Chapter6: Thermochemistry
Section: Chapter Questions
Problem 129CP: A piece of chocolate cake contains about 400 calories. A nutritional calorie is equal to 1000...
icon
Related questions
Question
100%

I need help with the underlined problem

Energy is Derived in SI in Units of Joule
1 J = 1 Kg-m² =[m]•[v²] =[m]•[a]•[d] =[P]•[V] = [any E !]
%3D
%3D
s2
4.184 J = 1 cal
= q[1 g(H2O): 14.5 °C → 15.5 °C]
%3D
Dietary e nutritional Calorie is 1 Cal = 1 kcal = 1000 cal
%3D
Energy Required to
Raise Temperature of to Light 100-W
1 g of Water by 1°C
Energy Required Total Energy Used
by Average U.S.
Citizen in 1 Day
Unit
Bulb for 1 Hour
joule ()
calorie (cal)
4.184
3.6 x 105
9.0 x 108
1.00
8.60 x 104
2.2 x 108
Calorie (Cal)
0.00100
86.0
2.2 x 105
kilowatt-hour (kWh)
1.16 X 10-6
0.100
2.50 X 102
.. Convert 1.991× 104 kJ to kcal:
101x
1 kJ 4,184 j 108 cal
1 cal x 1 kcal= 4,759 kcal
1.991.104 k) x
X-
.. Convert 7 × 10-3 Cal (dietary!) to J:
Transcribed Image Text:Energy is Derived in SI in Units of Joule 1 J = 1 Kg-m² =[m]•[v²] =[m]•[a]•[d] =[P]•[V] = [any E !] %3D %3D s2 4.184 J = 1 cal = q[1 g(H2O): 14.5 °C → 15.5 °C] %3D Dietary e nutritional Calorie is 1 Cal = 1 kcal = 1000 cal %3D Energy Required to Raise Temperature of to Light 100-W 1 g of Water by 1°C Energy Required Total Energy Used by Average U.S. Citizen in 1 Day Unit Bulb for 1 Hour joule () calorie (cal) 4.184 3.6 x 105 9.0 x 108 1.00 8.60 x 104 2.2 x 108 Calorie (Cal) 0.00100 86.0 2.2 x 105 kilowatt-hour (kWh) 1.16 X 10-6 0.100 2.50 X 102 .. Convert 1.991× 104 kJ to kcal: 101x 1 kJ 4,184 j 108 cal 1 cal x 1 kcal= 4,759 kcal 1.991.104 k) x X- .. Convert 7 × 10-3 Cal (dietary!) to J:
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Measurement
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.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781133611097
Author:
Steven S. Zumdahl
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
Chemistry by OpenStax (2015-05-04)
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 for Engineering Students
Chemistry
ISBN:
9781337398909
Author:
Lawrence S. Brown, Tom Holme
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning