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Types of Catalysis

For a reactio...

Question

For a reaction at 298k A+B gives u C+D : ∆H = -10kJ/mol, ∆S = -33.3kJ/mol. At what temperature will be the reaction become spontaneous in the forward direction ?

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Solution

We know G = H - TS

G = -10,000 + 33300 T

Please check the units of S
because S cant be in kJ

find the temperature where G is zero
that is the temperature you are looking for

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M_{2} O (s) \to 2 M (s) + \frac{1}{2} O_{2} (g); Δ H = 30 k J m o l^{- 1} a n d Δ S = 0.07 k J K^{- 1} m o l^{- 1} a t 1 a t m .

K

Δ H

Δ S

30 k J

{m o l}^{- 1}

100 J K^{- 1}

{m o l}^{- 1}

\to C

△

m o l^{- 1}

△

K^{- 1}

m o l^{- 1}

△

△

For the reaction at 298 K,

2A + B → C

ΔH = 400 kJ mol^–1 and ΔS = 0.2 kJ K^–1 mol^–1

At what temperature will the reaction become spontaneous considering ΔH and ΔS to be constant over the temperature range?

Δ H = 35.5 k J m o l^{- 1}

Δ S = 83.6 k J m o l^{- 1}

Δ H

Δ S

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