e transfer of 100 kJ ofbeat to a large mass ofwater at 09C(273 K) results in a c
ID: 580326 • Letter: E
Question
e transfer of 100 kJ ofbeat to a large mass ofwater at 09C(273 K) results in a change ofentropy of +366 , KI where" the same heat tran!"at100"C(373 K) results in·change of tropy of +268 J K 1. What "the reason for thi" reduction in e tropy chnge? The suroundings take a larger part of the heat at higher temperatue, so that the entropy change in the sstem(er) is lower The definition ofcntropy implies that transferringhe ne amount ofheat at different temperatures to the sa ne wydem renh rent entropychanges. There is sonedang wrong with problem because thr ortropy chang' depends my onth. Hut ofheat being trmfomedExplanation / Answer
The enrtopy change dS is given by formula dS = dQ / T where dQ is heat trasnferred , T = temperature
Thus higher temperature means lower value for dS ( entropy change)
Thus the correct answer is 2nd option i.e The definition of entropy implies transferring same amount of heat to different systems at different temperature yields different results
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