Methanol can be produced from carbon monoxide and hydrogen with suitable catalysts: CO(g) + 2 H₂(g) → CH₃OH(l) at 25°C ΔH° = -128.1 kJ and ΔS° = -332 J/K
Find ΔG° at 25°C.

Question

Methanol can be produced from carbon monoxide and hydrogen with suitable catalysts: CO(g)+ 2 H₂(g)→ CH₃OH(l)at 25°C ΔH° = -128.1 kJ and ΔS° = -332 J/K Find ΔG° at 25°C.

Quizplus · Accepted Answer

To find ΔG° at 25°C, use the equation ΔG° = ΔH° - TΔS°. Given ΔH° = -128.1 kJ and ΔS° = -332 J/K (which needs to be converted to kJ by dividing by 1000, making it -0.332 kJ/K), and T = 25°C = 298 K (since temperature needs to be in Kelvin for this equation), ΔG° = -128.1 kJ - (298 K)(-0.332 kJ/K) = -128.1 kJ + 98.9 kJ = -29.1 kJ.

Methanol Can Be Produced from Carbon Monoxide and Hydrogen with Suitable