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Calculate the change in enthalpy when 520g of cr at 25

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Reference no: EM13588211

Calculate the change in enthalpy when 52.0g of Cr at 25 degrees celsius and 1 atm pressure is oxidized.

(delta Hf (degrees) for Cr2O3(s) is -1140kJ/mol)

4Cr(s) + 3O2(g) -> 2Cr2O3(s)

A. -1140kJ

B. +1140kJ

C. -570kJ

D. +570kJ

E. -285kJ

Reference no: EM13588211

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