E rxn for the reaction given in Problem 14.77 is 90.8 kJ. Would the fraction of methanol

ΔE_rxn for the reaction given in Problem 14.77 is –90.8 kJ. Would the fraction of methanol present at equilibrium be increased or decreased by raising the temperature? Explain your answer.

Data from Problem 14.77

The equilibrium constant for the synthesis of methanol,

is 4.3 at 250°C and 1.8 at 275°C.

(a) Does this reaction shift to the left or to the right when the reaction mixture is heated? Explain how you know.

(b) Is this reaction endothermic or exothermic? Explain how you know.

(c) Rewrite the equation for the reaction, including heat on the appropriate side.

Transcribed Image Text:

CO(g) + 2 H₂(g) → CH3OH(8) Methanol