A person consumes about 2200 Cal a day. 1 Cal=4186 J. and 1 kWh = 860 Cal. Part A What is this energy in joules? Express your answer using two significant figures. Pañal for Partido for Part redo foart A refor Part A keyboard shortcuts for Part A help for P Q-9.6.106

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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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Part D
An object at 20° C absorbs 25.0 J of heat. What is the change in entropy AS of the object?
Express your answer numerically in joules per kelvin.
for Part D for Part D do for Part & redo for eart D resor Part D keyboard shortcuts for Part D help for Part D
AS = 0.85
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Part E
An object at 500 K dissipates 25.0 kJ of heat into the surroundings. What is the change in entropy AS of the object? Assume that the temperature of the object does not change appreciably in the process.
Express your answer numerically in joules per kelvin.
AS =
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Part F
AS =
for Part E for Part do f
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Part G
An object at 400 K absorbs 25.0 kJ of heat from the surroundings. What is the change in entropy AS of the object? Assume that the temperature of the object does not change appreciably in the process.
Express your answer numerically in joules per kelvin.
for Pairt for Part do for Part redo for Part Free for Part F keyboard shortcuts for Part F help for Part F
for Part
art redo for Part E reset or Part E keyboard shortcuts for Part E help for Part E
ASsys=
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J/K
Two objects form closed system. One object, which is at 400 K, absorbs 25.0 kJ of heat from the other object, which is at 500 K. What is the net change in entropy AS sys of the system? Assume that the temperatures of the objects do not change appreciably in the process.
Express your answer numerically in joules per kelvin.
for Part G for Part Go for Part
Request Answer
J/K
J/K
redo foreart G resor Part G keyboard shortcuts for Part G help for Part G
J/K
Transcribed Image Text:Part D An object at 20° C absorbs 25.0 J of heat. What is the change in entropy AS of the object? Express your answer numerically in joules per kelvin. for Part D for Part D do for Part & redo for eart D resor Part D keyboard shortcuts for Part D help for Part D AS = 0.85 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part E An object at 500 K dissipates 25.0 kJ of heat into the surroundings. What is the change in entropy AS of the object? Assume that the temperature of the object does not change appreciably in the process. Express your answer numerically in joules per kelvin. AS = Submit Request Answer Part F AS = for Part E for Part do f Submit Request Answer Part G An object at 400 K absorbs 25.0 kJ of heat from the surroundings. What is the change in entropy AS of the object? Assume that the temperature of the object does not change appreciably in the process. Express your answer numerically in joules per kelvin. for Pairt for Part do for Part redo for Part Free for Part F keyboard shortcuts for Part F help for Part F for Part art redo for Part E reset or Part E keyboard shortcuts for Part E help for Part E ASsys= Submit J/K Two objects form closed system. One object, which is at 400 K, absorbs 25.0 kJ of heat from the other object, which is at 500 K. What is the net change in entropy AS sys of the system? Assume that the temperatures of the objects do not change appreciably in the process. Express your answer numerically in joules per kelvin. for Part G for Part Go for Part Request Answer J/K J/K redo foreart G resor Part G keyboard shortcuts for Part G help for Part G J/K
A person consumes about 2200 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal.
Part A
What is this energy in joules?
Express your answer using two significant figures.
for Part A for Part A do for Part redo for Part A reset for Part A keyboard shortcuts for Part A help for Pal
2=9.6.106
Submit
Previous Answers Request Answer
X Incorrect; Try Again; One attempt remaining
Review your calculations and make sure you round to 2 significant figures in the last step.
Transcribed Image Text:A person consumes about 2200 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal. Part A What is this energy in joules? Express your answer using two significant figures. for Part A for Part A do for Part redo for Part A reset for Part A keyboard shortcuts for Part A help for Pal 2=9.6.106 Submit Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining Review your calculations and make sure you round to 2 significant figures in the last step.
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