which one is true? explain your choice. (i) when x-ray diffraction patterns of N

Question

which one is true? explain your choice. (i) when x-ray diffraction patterns of Ni and Cu are collected under identical conditions the reflection from {111} in Ni is more intense than the reflection from {110} in Cu. (ii) if element A has the same atomic radius as element B at room temperature, then the solubility of A in B is the same as the solubility of B in A at room temperature. (iii) stacking faults in CCP crystals change the structure locally to BCC. (iv) the strength of iron at room temperature depends on the carbon content but not on the size of the iron crystals ("grains"). (v) the activation energy fro vacancy creation in pure Al is an increasing function of temperature

Explanation / Answer

the strength of iron at room temperature depends on the carbon content but not on size of the iron crystals because if the temperature increses then there will be bond breakage and the material is no stronger. if that material gets cooled down then the carbon content plays a major role in the formation of bond.which will increase the strongness of the bond.

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