A catalyst speeds up the reaction and lowers the amount of heat needed.
A catalyst is a substance which speeds up the rate of reaction. After the reaction it remain chemically unchanged. It does NOT affect the position of equilibrium. There can also be negative or "poisoned" catalysts as in Rosenmunds reaction.
a catalyst can affect the rate of a reaction. speeding it up.
None. A catalyst affects only the rate of reaction, and if the reaction is already at equilibrium, the net rate of the reaction is zero and remains so after a catalyst is added.
A catalyst enables more particles to reach the activation energy and to take part in the reaction. Therefore the speed of the reaction increases.
With a catalyst the reaction rate is higher.
A catalyst is a material which make possible a chemical reaction, improve the rate of reaction, increases the yield of the reaction; a catalyst doesn't react with reactants/products.
Catalysts affect reaction rates by providing an alternate route of reaction with lower activation energy. Therefore, they speed up the process they are catalyzing in both the forward and reverse directions.
They provide alternative pathway for the reaction, usually with less energy barrier
a catalyst has no effect in chemical reaction. it only increases or decreases the rate of the chemical reaction.
A catalyst speeds up the rate of a reaction.
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)
A catalyst speeds up the rate of a reaction.