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Thermodynamics question

2018 · 15 Apr · Shift 2 · Q20
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Thermodynamics question

2018 · 15 Apr · Shift 2 · Q20

JEE MainChemistryThermodynamicsMCQ+4 / −1
Given (i) 2Fe2O3Fe_2O_3Fe2​O3​(s) →\to→ 4FeFeFe(s) + 3O2O_2O2​(g); Δ\DeltaΔ rGo = + 1487.0 kJ mol-1 (ii) 2COCOCO(g) + O2O_2O2​(g) →\to→ 2CO2CO_2CO2​(g); Δ\DeltaΔ rGo = −-− 514.4 kJ mol-1 Free energy change, Δ\DeltaΔ rGo for the reaction 2Fe2O3Fe_2O_3Fe2​O3​(s) + 6COCOCO(g) →\to→ 4FeFeFe(s) + 6CO2CO_2CO2​(g) will be :
  1. A
    −-− 112.4 kJ mol-1
  2. B
    −-− 56.2 kJ mol-1
  3. C
    −-− 168.2 kJ mol-1
  4. D
    −-− 208.0 kJ mol-1
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