Iron is held at a temperature of 720°C. If the energy for vacancy formation is 1.08 eV/atom, calculate the number of vacancies in the iron at this temperature. * The density and atomic weight for Fe are 7.65 g/cm and 55.85 g/mol respectively

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Q: S(s, rhombic) + O₂(g) → SO₂(g) At 298 K, AH for this reaction is-269.9 kJ/mol, and AS is +11.6 J/K.

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Q: Which element is a liquid at 758 K and standard pressure? A) Gold B) Silver C) Platinum D) thallium

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Q: A hypothetical element, Le, has a body-centered cubic structure with a density of 7.89 g/cm3.…

A: Given;

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Q: Bronze is an alloy of copper. What is the alloying mettalic element?

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Q: explain why diamond is a very hard substance and graphite (e.g. pencil ‘lead’) is very soft.

A: The solution is given below -

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Q: True or false? SEM can investigate the crystalline structure of an object

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