question archive Knowing the following data: R = 0

Knowing the following data: R = 0

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Knowing the following data:

R = 0.0083145 kJ/mol K

ΔH = -41.2 kJ/mol

ΔS = -0.135 kJ/mol K

 

Determine ΔG (in kJ/mol) at 198.3 K when:

[H2] = 2.35 M

[CO2] = 2.66 M

[CO] = 0.673 M

[H2O] = 0.185 M

 

Here is the reaction:

CO (g) + H2O (g) ? CO2 (g) + H2 (g)

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Answer- ΔG = -14.4295 kJ/mol

?ΔG is negative, means the reaction is spontaneous

ΔG is calculated using formula,

ΔG = ΔH-TΔS

Where

ΔG = change in free energy

ΔH = change in enthalpy

ΔS = change in entropy

T = temperature

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