Rates of Reaction

List four factors that affects the rate of a reaction

• temperature

• concentration

• surface area

• volume

• catalysts

A temperature increase causes the particles ......

• to slow down

• move faster

• collide higher

• in the right order

How does a catalyst work in speeding up a reaction?

• By lowering the activation energy or reaction

• by giving them more energy

• by making them more available

Why does a higher concentration increase the rate of reaction?

• it increases the amount of reactants

• it lowers the activation energy

• it increases the energy of particle collisions

• it increases the frequency of particle collisions

Why does a higher temperature increase the rate of a reaction?

• it increases both the frequency and energy of particle collisions

• it only increases the frequency of particle collisions

• it only increases the energy of particle collisions

• it reduces the activation energy of the reaction

The ______________is required to break the bonds of the reactants.

• Carbonic energy

• Activation energy

• Plutonic energy

• Energi Gaib

which statements correctly describes the change in such a distribution if the temperature is increased ?

• Fewer molecules possess the most probable energy value and this value shifts to the left

• Fewer molecules possess the most probable energy value and this value shifts to the right

• more molecules possess the most probable energy value and this value shifts to the left

• Aaaah gak ngerti biarin aja lah

Which arrow represents the activation energy for the forward reaction?

• menurut teori, kayak nya A

• B lebih baik sepertinya

• menurut gue sih C

• D lebih masuk akal kayaknya

Tags

NGSS.HS-PS1-4

which curve applies for the same gas at a lower temperature?

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Which solid-line curve most accurately represents the distribution of molecular energies in a gas at 500K if the dotted-line represents the corresponding distribution for the same gas at 300K ?

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