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Inspired by Alfred Werner (1866-1919), a KOTA student decided to reconduct a similar experiment on unknown salt samples of MCl_(3).xNH_(3) . The student found that some of the chloride ions could be prdipitated as AgCl on adding silver nitrate solution. He found that this salt was of 4 years (based on colour). He labelled these complexes as A (yellow complex) B( purple complex), C (Green complex), D (violet complex). He found that moles of AgCl precipitated (per mole of salt) in one case was 3, one case it was 2, and in two cases it was one. He then measured the electrical conductivity of various salt solutions and found that D had the lowest value. He then measured the boiling point of solutions of A, B, C, D and found that B had the 2nd highest boiling point, Based on the above information, answer the following questions. The student took 2.675 g sample of A (Atomic weight of central atom=59) and dissolved it in water to form 1 L solution whose molar conductance was found to be 200" "Omega^(-1)cm^(2)mol^(-1) What is the specific conductance of the solution ?

Figure shows the graph of elastic potential energy (U) stored versus extension, for a steel wire (Y = 2xx10^(11) Pa) of volume 200 c c . If area of cross- section A and original length L, then

For a reaction : 3A(g)+B(g)to2C(g)+4D(l) Delta U^(@)=50kcal//"mole" and DeltaS^(@)=-400cal//"mol-K". Calculate DeltaG^(@) at 200K: