Reaction Rate Challenge

Froggy Jumps

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Sobre esta actividad

Test your understanding of how fast reactions occur.

Creada por

Aysha alkaabi

Emiratos Árabes Unidos

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Reaction Rate Challenge


Froggy Jumps Reaction Rate ChallengeVersión en línea Test your understanding of how fast reactions occur. por Aysha alkaabi 1 What is the reaction rate? a Change in concentration of reactants or products per unit time b Total amount of reactants used c Energy absorbed per mole 2 Which factor increases reaction rate by increasing particle collisions? a Increasing surface area of products b Increasing temperature c Adding a catalyst 3 In a zero-order reaction, how does rate depend on [A]? a Rate ∝ [A] b Rate is independent of [A] c Rate ∝ [A]^2 4 Which unit is commonly used for reaction rate? a Joules per mole (J/mol) b Molarity per second (M/s) c Meters per second (m/s) 5 What is the rate law? a An expression relating rate to reactant concentrations b A law about legal rates c A measure of energy change 6 What does a rate law express in a reaction? a The total mass of products formed b How the rate changes with temperature only c How the rate depends on reactant concentrations 7 What is the rate order of a reaction? a Sum of the exponents in the rate law b Stoichiometric coefficients in the balanced equation c Number of steps in the mechanism 8 How is the average reaction rate defined over a time interval? a Product concentration divided by time b Change in concentration over change in time c Final concentration minus initial concentration 9 If rate = k[A]^2[B], what is the overall order? a 1 b 2 c 3 10 What is a common unit for the rate constant k in a second-order reaction? a L^2/(mol^2·s) b s^-1 c L/(mol·s) 11 How would you calculate the average rate from experimental data? a Compute ∆[A]/∆t between two time points b Divide product by time c Use final concentration only 12 If doubling [A] doubles the rate, the order w.r.t A is? a Second order b First order c Zero order 13 For a first-order reaction, how is the half-life related to k? a t1/2 = 0.693/k b t1/2 = 2k c t1/2 = k/0.693 14 What does a rate law include besides the rate constant? a Concentrations of reactants b Concentrations of products c Solvent volume only 15 For rate = k[A]^1[B]^2, what is the overall reaction order? a 1 b 3 c 2

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Reaction Rate Challenge

Froggy Jumps

Sobre esta actividad

Creada por

Descarga la versión para jugar en papel

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Reaction Rate ChallengeVersión en línea

por Aysha alkaabi

What is the reaction rate?

Which factor increases reaction rate by increasing particle collisions?

In a zero-order reaction, how does rate depend on [A]?

Which unit is commonly used for reaction rate?

What is the rate law?

What does a rate law express in a reaction?

What is the rate order of a reaction?

How is the average reaction rate defined over a time interval?

If rate = k[A]^2[B], what is the overall order?

What is a common unit for the rate constant k in a second-order reaction?

How would you calculate the average rate from experimental data?

If doubling [A] doubles the rate, the order w.r.t A is?

For a first-order reaction, how is the half-life related to k?

What does a rate law include besides the rate constant?

For rate = k[A]^1[B]^2, what is the overall reaction order?