6. Thermodynamics and Kinetics
Entropy
6. Thermodynamics and Kinetics Entropy
5PRACTICE PROBLEM
At room temperature the reaction between propene (CH2=CH−CH3) and hydrogen gas (H2) to form propane (CH3−CH2−CH3) goes to completion when a platinum catalyst is present in the reaction mixture.
Determine the signs of ΔH° and ΔS° for this addition reaction based on the information given above.
Explain these signs in terms of freedom of motion and bonding.
CH2=CH−CH3 + H2 (Pt catalyst) → CH3−CH2−CH3
At room temperature the reaction between propene (CH2=CH−CH3) and hydrogen gas (H2) to form propane (CH3−CH2−CH3) goes to completion when a platinum catalyst is present in the reaction mixture.
Determine the signs of ΔH° and ΔS° for this addition reaction based on the information given above.
Explain these signs in terms of freedom of motion and bonding.
CH2=CH−CH3 + H2 (Pt catalyst) → CH3−CH2−CH3