Thermodynamics and Final Temperature
Chapter 6-9
University of Arkansas at Little Rock
Dr. Robert Belford and Casey Hawkins



ΔHf=6.02kJ/mol,ΔHv=40.6kJ/mol, cwater=4.184J/g-C,cice=2.01J/g-C,csteam=2.06J/g-C,

Question 1
If 500.0J is added to 25.0g of water at
-25.0oC, what is the final temperature?

(A)  -15.0oC
(B)  -15.3oC
(C)  -20.2oC
(D)  None of the above
 
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Question 2
If 6.67kJ is added to 25.0g of water at
-25.0oC, what is the final temperature?(Ice is solid and liquid.)

(A)  0oC
(B)  137oC
(C)  54.9oC
(D)  None of the above
 
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Question 3
If 17.85kJ is added to 25.0g of water at
-25.0oC, what is the final temperature?

(A)  127oC
(B)  131oC
(C)  78.9oC
(D)  None of the above
 
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Question 4
If 56.38kJ is added to 25.0g of water at
-25.0oC, what is the final temperature?(Ice is liquid and vapor)

(A)  100oC
(B)  514oC
(C)  1097oc
(D)  None of the above
 
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Question 5
If 7784kJJ is added to 25.0g of water at
-25.0oC, what is the final temperature?

(A)  108oC
(B)  39.9oC
(C)  127oC
(D)  None of the above
 
Hint

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