Unburned hydrocarbon on reacting with oxygen undergoes combustion reaction. However, the activation energy of this reaction is significantly high. When a catalyst like Pd is added to the reaction system, it provides active sites for the reaction to occur. It acts are a heterogeneous catalyst. It is pertinent of note that catalyst is refereed as heterogeneous, when it exist in different phase as compared to reactant and products. In present case, reactants and products are in gas phase, while catalyst is in solid phase. Due to availability of larger surface area at active site of Pd, activation energy of reaction decreases and decrease in activation energy favors higher reaction rates.
Answer:
the definition of behavior is the way in which someone conducts oneself or behaves.
Answer: combustion reaction.
Explanation:
Gasoline is a mixture of hydrocarbons (with some other dded substances in minor proportion).
Assuming a hypothetical composition of the gasoline as C₅H₁₂ (only for explanation purposes), the chemical reaction that occurs when gasoline is burned is represented by:
- 2C₅H₁₂ + 16O₂ → 10CO₂ + 12H₂O + energy.
Combustion is a special type of chemical reaction, in which oxygen combines with other substance (element or compound) releasing a large amount of energy in the form of heat and light. It is a very common reaction of the hydrocarbons and the products are carbon dioxide and water in the form of vapor.
The combustion of carbon (C) is a very important and common reaction that has been using to produce energy: C(s) + O₂(g) → CO₂ (g)
