Change in entropy due to condition is ΔS=ClogT2/T1 C= Heat capacity Now, C=N1J/°CT2=200°CT1=100°CIn case I ΔS1=1×2×log100200=2log2In case IIΔS2=1×8×log200/100=8log2 In first case, number of reservoir is 2. In second case, number of reservoir is 8.