The initial rate of the reaction is determined for different initial conditions, with the results listed in the table. (a) What is the overall reaction order? (b) What is the value of the rate constant, k

Q: Decay of a pollutant is a 1st order reaction with a half-life of 55 days. How many days are needed…

A: If initial concentaration= 100 Final concentration= 100-90=10

Q: In a study of the temperature-dependence of a reaction, it was determined that the activation…

A: Arrhenius Equation: Svante Arrhenius created the Arrhenius equation in 1889 to demonstrate how…

Q: A substance undergoes first-order decomposition. After 45 min at 500°C, only 12.5% of the original…

A: A substance undergoes first order reaction.  Time = 45 min  Temperature = 500 °C  Original sample…

Q: The decomposition of ammonia on a tungsten surface at 1100 °C NH, 1/2 N, + 3/2 H2 is zero order in…

A:

Q: Determine the half life of a reaction with rate constant, k= 0.00504 M/s if the initial…

A: We have initial concentration as 0.321 M, and rate constant value as 0.00504 M/s  . We have to…

Q: a. What are the orders of reaction with respect to each reactant, and what is the overall order of…

A:

Q: The half-life of a first-order reaction is found to be 28.25 min. a. What is the value of the rate…

A: a.

Q: (b) Calculate the value of the rate constant, k, for the reaction. Include the correct units.

A: Rate law of the reaction is,

Q: If the rate law for the reaction 2A + 3B → C, is rate = k, then the reaction is ___ order in terms…

A: The rate of reaction depends on the concentration of the reactant.  Sometimes it is also independent…

Q: At 518 °C, the half-life for the decomposition of a sample of gaseous ethanal (acetaldehyde)…

A: In chemical kinetics rate of reaction and its variation with any factors is studied. Various factors…

Q: The half-life of the reaction does not depend on the initial concentration of the reactant if the…

A: half-life of the reaction does not depend on the initial concentration of the reactant

Q: A substance undergoes first-order decomposition. After 28 min at 500°C, only 12.5% of the original…

A:

Q: For a reaction with multiple reactants, how is the overall order of the reaction defined?

A: Rate of reaction represents the change of concentration of a reactant or a product with respect to…

Q: A substance undergoes first-order decomposition. After 36 min at 500°C, only 12.5% of the original…

A: When a substance remains only 50℅ in a period, that period is known as the half-life of that…

Q: A reaction has a constant half-life of 250 s. How long will it take for the reactant concentration…

A: Given: Reaction is having a constant half-life of 250 s. And to find the time required for the…

Q: What

A: We will calculate order of the given reaction

Q: What is the rate law for the reaction A → B if the rate constant, k, is 0.25 M⁻¹ s⁻¹ at 75°C?

A: Given  K = 0.25 M-1 s-1

Q: A particular reactant decomposes with a half‑life of 155 s155 s when its initial concentration is…

A: For the same reactant, if the half life increases with the decrease in the concentration then it…

Q: The follow data was obtained for the acid decomposition of aspirin. Based on this data what is the…

A:

Q: certain substance, initially at 0.10 M in solution, decomposes by second-order kinetics. If the rate…

A: The question is based on the concept of chemical kinetics. it talks of second order reaction for…

Q: referring to the table, how do we find the rate constant (k)?

A:

Q: Derive an expression for the half-life of a second-order reaction in terms of the rate constant k.

A: The time in which half of the reactant gets decomposed is known as half life time of the reaction…

Q: If the rate of a reaction is four times as fast when the concentration of a reactant is doubled,…

A:

Q: Determine the reaction order, the rate constant, and the units of the rate constant. order = (units)…

A: From the graph of [A] vs t, it is seen that it is a zero order reaction.

Q: A reactant decomposes with a half-life of 179 s when its initial concentration is 0.3140 M. When the…

A: For the same reactant, the half life remains constant with decrease in concentration of the…

Q: What is the first-order rate constant for its decay?

A: Relationship between t1/2 and k in first order reaction :-  t1/2 = ln 2/k  Or  t1/2 = 0.693/k  k is…

Q: Determine the reaction order, the rate constant, and the units of the rate constant.

A:

Q: the rate constant k for a first order reaction is what?

A: Rate Constant k for a First order reaction: Consider the reaction,

Q: Given the image, what is the rate law of the reaction.

A: Let the rate law of the reaction be: Rate=k[NO2]a[O3]b                     ...... (1) Putting the…

Q: It is found for the reaction A + B à C that doubling the concentration of either A or B quadruples…

A: Rate law is an equation that tells the affect of change in concentration of a reactant on the…

Q: What is the half-life for a particular reaction if the rate law is rate = (801 min ')[A]?

A:

Q: Calculate the average rate of the reaction on the basis of the following informa- tion:

A:

Q: At 518 °C, the half-life for the decomposition of a sample of gaseous acetaldehyde, initially at 363…

A: In chemical kinetics rate of reaction and its variation with any factors is studied. Various factors…

Q: The age of wine can be determined by measuring the trace amount of radioactive tritium, H, present…

A: Answer: Given data: N=0.191N0 Here: N0=initial quantity of tritium  N=Quantity of tritium at time t…

Q: The following data is given for a reaction A → products. Find the order of this reaction and its…

A:

Q: What is the difference between average rate, initial rate, and instantaneous rate?

A: The measure of the change in concentration of reactant or product with time is called rate of…

Q: Consider the reaction: 4PH3 → P4 + 6H, Suppose that, at a particular moment during the reaction,…

A:

Q: It took 774.7 s for 42.04% of a substance to react according to first-order kinetics. What is the…

A: K = 2.303/t log (a/(a-x)) where K = first order rate constant = ? s-1 t = time taken = 774.7 s a =…

Q: Distinguish between a) an elementary reaction and the overall reaction b) molecularity and reaction…

A: Ghus question is based on the difference of them, a)An elementary reaction and the overall reaction…

Q: The reaction A → B + C is found to be zero order. If it takes 4.2  102 seconds for an initial…

A: Order of reaction = zero order  Time = 4.2 ×102 sec  Initial concentration = 0.58 M Final…

Q: What does the term  half-life  mean? Write the expressions for the half-lives of zero-order,…

A: Half-life is the time period during which element losses half of its total initial amount. For the…

Q: A substance undergoes first-order decomposition. After 37 min at 500°C, only 12.5% of the original…

A: The integrated rate equation for first order reaction is  k = 2.303tlog[R]o[R] k = rate constant t =…

Q: A particular reactant decomposes with a half-life of 121 s when its initial concentration is 0.264…

A:

Q: A substance undergoes first-order decomposition. After 53 min at 500°C, only 12.5% of the original…

A:

Q: The rate of a chemical reaction, v, is given by the expression, -A[A]/At or the expression, k[A];…

A: Given  v = K [ A ] Unit of rate constant = ?