Multiple Choice
It can be shown that the change in entropy in heating or cooling a sample is given by the relation S = mc ln (TF/Ti) ,where m is the mass of the sample,c is the specific heat of the sample,and TF and Ti are the final and initial temperatures respectively.What is the change in entropy when 20 grams of aluminum with a specific heat of 0.900 J/gm K is cooled from 60.0 C to 10.0 C?
A) +2.93 J/K
B) +2.50 J/K
C) 0.00 J/K
D) -2.93 J/K
Correct Answer:
Verified
Correct Answer:
Verified
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