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Assuming that the reaction is at equilibrium what effect does the addition of a catalyst have on the equilibruim?
a catalyst lowers the activation energy for both the forward and reverse reaction. however, it does not change the potential energy of the reactants or products. it also does not affect the heat of reaction (delta h)
Why do catalyst allow the chemical reaction take place at 0 Celsius?
When reactants are joined by a catalyst, they no longer have to collide with much energy to react. Thus, with the catalyst present the reaction can proceed at very low temperatures.
In a chemical reaction a catalyst changes the 1.potential energy of the products 2.potential energy of the reactants 3. heat of reaction 4.activation energy?
4. activation energy
How can a reaction generally be made to go more quickly?
Lowering the activation energy, Adding a cataylst
What happens to catalyst in a reaction?
it is incorporated into the reactants
Assuming that the reaction is at equilibrium what effect does the addition of a catalyst have on the equilibruim?
a catalyst lowers the activation energy for both the forward and reverse reaction. however, it does not change the potential energy of the reactants or products. it also does not affect the heat of reaction (delta h)
Why do catalyst work without adding heat?
A catalyst changes the path of reaction mechanism and decreases the activation energy required by the reactants.
What is the effect of a catalyst on the required energy to acheieve effective collisions?
A catalyst lowers the activation energy of a reaction.
What is the difference between a homogeneous catalyst and a heterogeneous catalyst?
The difference between a homogeneous and a heterogeneous catalyst is that in a heterogeneous catalyst, it is in a different phase from the reactants. However, in a homogeneous catalyst, it is in the same phase as the reactants.
What are the 5 important factors that influence the rate of a chemical reaction?
Temperature Surface area/phase of reactants Concentration of reactants Presence of catalyst Activation energy of reaction
What are products reactants and catalysts?
* Reactants: the initial compounds in a chemical reaction. * Products: the final compounds in a chemical reaction. * Catalyst: a chemical compound which help the chemical reaction but not react with the other compounds.
What are the reactants of a catalyst-assisted reaction?
Reactants are also known as substrates.
What is the main difference between a heterogeneous catalyst and a homogeneous catalyst?
The heterogeneous catalyst is not mixed with the reactants.
Why do catalyst allow the chemical reaction take place at 0 Celsius?
When reactants are joined by a catalyst, they no longer have to collide with much energy to react. Thus, with the catalyst present the reaction can proceed at very low temperatures.
In a combustion reaction between butane and oxygen which contains more energy reactants catalyst products or products and reactants contain the same amount of energy?
Every combustion process is exothermic (the release of heat and light) so the products have low energy as compare to reactants which are in this case Butane and oxygen.
In a chemical reaction a catalyst changes the 1.potential energy of the products 2.potential energy of the reactants 3. heat of reaction 4.activation energy?
4. activation energy
How can a reaction generally be made to go more quickly?
Lowering the activation energy, Adding a cataylst
