In general it is found that in any given couple, atoms with the lower melting point possess a higher D. (Diffusion Coefficient).

In general it is found that in any given couple, atoms with the lower melting point possess a higher D. (Diffusion Coefficient). Correct Answer True

In general, it is found that in any given couple, atoms with the lower melting point possess higher D. The exact value of D, however, varies with the composition of the alloy.
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How far is point 'R' from Point 'T'? Statement (I): Point 'R' is 5 metres to the north of point 'M'. Point 'U' is 4 metres to the east of point 'R'. Point 'T' is to the west of point 'R' such that points 'U' 'R' and 'T' form a straight line of  metres. Statement (II): Point 'Z' is metres to the south of point 'T'. Point 'U' is  metres to the east of point 'T'. Point 'M' is  metres to the east of point 'Z'. Point 'R' is  metres to the north of point 'M'. Point 'R' lies on the line formed by joining points 'T' and 'U'.