C6H5CHO reacts with H2 to form C6H5CH2OH. The equilibrium constant, Kp, for this reaction is 1.79 at 523 K. C6H5CHO(g) + H2(g) C6H5CH2OH(g) The standard enthalpy change for this reaction (ΔH°) is -55.5 kJ/mol. (a) Predict the effect on the production of C6H5CH2OH when the temperature of the equilibrium system is increased. is production favored or disfavored?  (b) Use the van’t Hoff equation to estimate the equilibrium constant for this reaction at 645 K. Kp at 645 K   =

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Chapter17: Spontaneity, Entropy, And Free Energy
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Problem 112CWP: The equilibrium constant for a certain reaction increases by a factor of 6.67 when the temperature...
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C6H5CHO reacts with H2 to form C6H5CH2OH. The equilibrium constant, Kp, for this reaction is 1.79 at 523 K.

C6H5CHO(g) + H2(g) C6H5CH2OH(g)

The standard enthalpy change for this reaction (ΔH°) is -55.5 kJ/mol.

(a) Predict the effect on the production of C6H5CH2OH when the temperature of the equilibrium system is increased. is production favored or disfavored

(b) Use the van’t Hoff equation to estimate the equilibrium constant for this reaction at 645 K.

Kp at 645 K   =   

 

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