The reaction-MgOs - Cs- Mgs - COg-For which r Ho - -491-1 kJ mol-1 and rS- - 198-0 J K-1 mol-1 is not feasible at 298 K- Temperature above which reaction will be feasible is

G^∘ = H^∘ T S^∘ For a reaction to be spontaneous G^∘ must be negative or less than zero i.e.,H^∘ T S^∘ lt;0 T gt; H^∘ S^∘⇒ T gt; 491.1 × 1000198 ...

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Gibbs Free Energy & Spontaneity

The reaction,...

Question

The reaction,
$M g O (s) + C (s) \to M g (s) + C O (g),$
For which $△_{r} H^{o} = + 491.1 k J m o l^{- 1} a n d △_{r} S^{\circ} = 198.0 J K^{- 1} m o l^{- 1}$ is not feasible at 298 K. Temperature above which reaction will be feasible is

2040.5 K

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1890.0 K

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2480.3 K

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2180.5 K

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

Δ_{r} H^{o} = + 491.1 k J . m o l^{- 1}

Δ_{r} S^{o} = 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}

27^{\circ} C

15 k J m o l^{- 1}

Which reaction is not feasible?

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