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C9: Kinetics

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Section 1

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concentration

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Date created

Mar 1, 2020

Cards (35)

Section 1

(35 cards)

concentration

Front

of a product increases during a chemical reaction

Back

decrease the rate of reaction

Front

decreasing the pressure (of gaseous reactions only) will

Back

the faster moving particles collide more often

Front

increasing the temperature increases the rate of reaction because

Back

the double bonds break (or weaken)

Front

with the nickel catalyst, the second step is that

Back

adsorption

Front

when ethene becomes attached to the solid nickel surface through London forces, this is a process called

Back

production of a gas, mass loss, disappearing cross

Front

methods of following rates

Back

increase the rate of reaction

Front

increasing the pressure (of gaseous reactions only) will

Back

solid nickel

Front

example of heterogeneous catalyst is

Back

increase the rate of reaction

Front

increasing the surface area will

Back

rate

Front

how fast a change is taking place

Back

heterogeneous catalysts

Front

catalysts that are in different states as the reactants

Back

decrease the rate of reaction

Front

decreasing the concentration will

Back

sticks onto a surface

Front

adsorption is when something

Back

more chances of a collision

Front

increasing the surface area leads to

Back

increase the rate of reaction

Front

increasing the temperature will

Back

more particles per unit volume as the particles are closer together

Front

raising the concentration or pressyre of any species means that there will be

Back

increase the rate of reaction

Front

adding a catalyst will

Back

more energy and so can overcome the activation energy

Front

when increasing the temperature of a reaction particles get

Back

the reactant particle collide more frequently

Front

when you raise the concentration or pressure, particles are closer together and so

Back

alternative pathway to lower the activation energy

Front

a catalyst works by providing an

Back

decrease the rate of reaction

Front

decreasing the surface area will

Back

collision theory

Front

only when they collide, there is a chance they will react

Back

concentration

Front

of a reactant decreases during a chemical reaction

Back

a catalyst

Front

is a substance that increases the rate of chemical reaction without itself being consumed during the reaction

Back

molecular energy in a gas

Front

the Maxwell-Boltzmann distributions curve shows

Back

homogeneous catalysts

Front

catalysts that are in the same state as the reactants

Back

the ethene becomes attached to the solid nickel surface through London forces

Front

when solid nickel is present in the reaction of ethene and hydrogen

Back

desorb

Front

at the end of the catalyst reaction the product molecules

Back

new bonds and products

Front

the highly reactive species (ethene) attached to the surface react to form

Back

free to adsorb more reactants

Front

when the product molecules desorb from the surface, the nickel surface is

Back

molecules or ions in gases or liquids

Front

they are in constant motion

Back

change in concentration / time

Front

rate of reaction equation

Back

decrease the rate of reaction

Front

decreasing the temperature will

Back

kinetics

Front

the study of rates of a chemical process

Back

increase the rate of reaction

Front

increasing the concentration will

Back