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For the reaction: FeCO3(s) → FeO(s) + CO2(g); ΔH = 82.8 kJ at 25°C, what is (ΔE or ΔU) at 25°C ?

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For the reaction: FeCO3(s) → FeO(s) + CO2(g); ΔH = 82.8 kJ at 25°C, what is (ΔE or ΔU) at 25°C ?

(a)  82.8 kJ

(b)  80.32 kJ

(c)  – 2394.77 kJ

(d)  85.28 kJ 

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Correct option (b) 80.32 kJ

Explanation:

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