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Grade 12th passThermal Physics

Calculate change in entropy of when 1 litre of water at 27℃is heated to 77℃

Profile image of Rislin basheer
6 Years agoGrade 12th pass
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1 Answer

Profile image of Arun
6 Years ago
 
 
w = 1 lit = 1 kg (approx)
hence mole n = 1000/18.5 = 54.054
 
now entropy change = n * cp ln (T2/ T1)
 
 = 54.054 * 4.2 * ln (360/300)
 
Hope it helps

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