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 10.0 grams of lead with a specific heat of 0.452 J/gm K is heated from 10.0 C to 50.0 C?
A) 0.45 J/K
B) 0.60 J/K
C) 0.90 J/K
D) 0.30 J/K
Correct Answer:
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