Rate Law Quiz

What does the rate law express the rate as a function of?

• Time and concentration

• Concentration and temperature

• Pressure and volume

• Mass and volume

Tags

NGSS.HS-PS1-5

In the rate law equation Rate = k [A]^m [B]^n, what do m and n represent?

• Coefficients of the balanced chemical equation

• Reaction orders indicating how the rate is affected by concentration

• Activation energies of reactants A and B

• Stoichiometric coefficients of reactants A and B

Tags

NGSS.HS-PS1-5

What is the overall order of a reaction with a rate law expressed as Rate = k [A]^1 [B]^2?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-5

If a reaction is first order with respect to reactant A, what happens to the rate if the concentration of A ([A]) doubles?

• The rate remains the same

• The rate doubles

• The rate quadruples

• The rate is halved

Tags

NGSS.HS-PS1-5

For a second order reaction with respect to a reactant A, how does the rate change if the concentration of A ([A]) doubles?

• The rate remains the same

• The rate doubles

• The rate quadruples

• The rate is halved

Tags

NGSS.HS-PS1-5

What happens to the rate of a zero order reaction when the concentration of the reactant doubles?

• The rate remains the same

• The rate doubles

• The rate quadruples

• The rate is halved

Tags

NGSS.HS-PS1-5

What is the order of reaction with respect to [A] based on the given data?

• Zero Order

• First Order

• Second Order

• Third Order

Tags

NGSS.HS-PS1-5

When the concentration of [A] is doubled from 1.0x10^-3 to 2.0x10^-3 while [B] remains constant, by what factor does the rate change?

• It remains the same

• It doubles

• It increases by a factor of 4

• It increases by a factor of 1.99

Tags

NGSS.HS-PS1-5

How must reaction orders be determined?

• By using the coefficients from the balanced chemical equation

• By experimentation

• By calculating the rate constant

• By the initial concentrations of reactants

What is the unit of the rate constant (k) for a second-order reaction?

• mol/L·s

• 1/s

• L/mol·s

• L²/mol²·s

Tags

NGSS.HS-PS1-5