The reaction- MgOs - Cs - MgS - COg- for which -r Ho - - 491-1 kJ- mol-1 and -r So - 198-0 JK-1 mol-1 is not feasible at 298 K- Temperature above which reaction will be feasible is -

The correct option is B 2480.3 KAt equilibrium, T_eq = Δ HΔ S = 491.1 × 1000198 = 2480.3 K ...

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Heat of Formation

The reaction,...

Question

The reaction, $M g O (s) + C (s) \to M g (S) + C O (g)$ , for which $Δ_{r} H^{o} = + 491.1 k J . m o l^{- 1}$ and $Δ_{r} S^{o} = 198.0 J K^{- 1} m o l^{- 1}$ is not feasible at 298 K. Temperature above which reaction will be feasible is :

1890.0 K

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2480.3 K

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2040.5 K

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2380.5 K

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M g O (s) + C (s) \to M g (s) + C O (g),

△_{r} H^{o} = + 491.1 k J m o l^{- 1} a n d △_{r} S^{\circ} = 198.0 J K^{- 1} m o l^{- 1}

M g O (s) + C (s) \to M g (s) + C O (g),

△_{r} H^{o} = + 491.1 k J m o l^{- 1} a n d △_{r} S^{\circ} = 198.0 J K^{- 1} m o l^{- 1}

Δ_{r} H

Δ_{r} S

M g O (s) + C (s) \to M g (s) + C O (g)

491.18

m o l^{- 1}

197.67

m o l^{- 1}

Δ_{f} G^{0}

C r_{2} O_{3}

540 {kJ mol}^{- 1}

A l_{2} O_{3}

- 827 {kJ mol}^{- 1}

C r_{2} O_{3}

A l

27^{\circ} C

15 k J m o l^{- 1}

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