Metallic iron at 20C is studied by the Bragg method, in which the crystal is oriented...

 

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Metallic iron at 20°C is studied by the Bragg method, in which the crystal is oriented so that a reflection is obtained from the planes parallel to the sides of the cubic crystal, then from planes cutting diagonally through opposite edges, and finally from planes cutting diagonally through opposite corners. Reflections are first obtained at 0 =11• 36', 8°3', and 2026', respectively. What type of cubic lattice does iron have at 20°C b.) Metallic iron also forms cubic crystals at 1110°C, but the reflections determined as described in (a) occur at 0 = 9•8', 12-57' and 7-55' respectively. What type of cubic lattice does iron have at 1110 C? c.) the density of iron at 20°C is 7.86g/cm. What is the length of the side of the unit cell at 20°c d.) What is the wavelength of the X-rays used? e.) What is the density of iron at 1100•C? Metallic iron at 20°C is studied by the Bragg method, in which the crystal is oriented so that a reflection is obtained from the planes parallel to the sides of the cubic crystal, then from planes cutting diagonally through opposite edges, and finally from planes cutting diagonally through opposite corners. Reflections are first obtained at 0 =11• 36', 8°3', and 2026', respectively. What type of cubic lattice does iron have at 20°C b.) Metallic iron also forms cubic crystals at 1110°C, but the reflections determined as described in (a) occur at 0 = 9•8', 12-57' and 7-55' respectively. What type of cubic lattice does iron have at 1110 C? c.) the density of iron at 20°C is 7.86g/cm. What is the length of the side of the unit cell at 20°c d.) What is the wavelength of the X-rays used? e.) What is the density of iron at 1100•C?

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According to Braggs reflection VII Braggs law 71 Braggs law Incident beam Outgoing beam e e e O Plan... View the full answer